The heat energy produced by propanol Essay Example

The heat energy produced by propanol Paper The energy released by a fuel depends on two things. Firstly the number of bonds to be broken and made and secondly the type of bonds involved. Therefore from the preliminary work I can see that propanol has similar type bonds to ethanol, but it has more of them. This means that proponal will use more energy to break the bonds and; therefore more energy will be released to make more new bonds. Also, the greater the surface area and the greater the force of attraction between the molecules, will make it harder to vaporise. Therefore more energy will be released. Fair Test I would like to gain the most reliable results possible using the equipment and conditions provided; therefore I will have to consider certain factors, which if I do not control, may enforce my results to become less reliable. I will, * Keep a constant water temperature at the beginning. * Keep the distance of the copper can away from the flame at 5cm. * Have a constant water mass. * Keep the temperature from which the experiment is terminated fairly constant. * Stir the water with the thermometer before each temperature reading, which will distribute the heat evenly. Results Fuel Mass of Fuel Used Average Ethanol Analysis I will use the averages for ethanol and propanol to work out the total energy transfer and then I will use this to find the mass of fuel burnt per mole. The workings below show what I found out and what this suggests. Ethanol Q = M x C x t The letter Q is the energy in joules and what I want to find out, M is the volume of water in the copper can, C is the specific heat capacity of water and At is the rise in temperature during the experiment. All of these were kept the same throughout the experiment; therefore, M = 100cm3 C = 4. 2 t = 200C This gives the equation,Heat produced. We will write a custom essay sample on The heat energy produced by propanol specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on The heat energy produced by propanol specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on The heat energy produced by propanol specifically for you FOR ONLY $16.38 $13.9/page Hire Writer The mass of ethanol burnt is 1. 4g and the relative molecular mass is 46, which I have already worked out previously. In order to work out the number of moles in 8400KJ I will use the equation, Number of Moles = mass/Relative Molar Mass If I put these numbers into the equation to give, Moles of ethanol burnt = 1. 4g/46 = 0. 03 moles. I will then use this to calculate the energy in one mole, 8400/0. 03 = 280000J = -280KJ Propanol I will use the same equation using the same numbers as before as they were kept the same in this experiment as well. This should give,Heat ProducedThe mass of propanol burnt is 1g and the relative molecular mass of propanol is 60, which I again worked out beforehand in my plan. I will use the equation, Number of Moles = mass/Relative Molar Mass I will put the numbers in the equation appropriately to give, Moles of propanol burnt The above figure can be used to work out the energy in one mole0KJ I did not use 0. 4 for the propanol average, because it does not follow the general trend; therefore it is anomalous. If I had included this result it may have affected my results slightly. The results that I obtained clearly show that the propanol did have the greatest energy loss; therefore my prediction was correct and theoretically my preliminary work was very successful in helping me gain the correct prediction. This is shown whereby for ethanol the energy give out per mole is -280KJ, whereas propanol gives out a slightly bigger -420KJ. From this experiment I have learnt that if there are too many carbon atoms present in a fuel then the energy given out as heat through combustion is increased, whereas if there are too few carbon atoms then the energy given out as heat from combustion decreases. If I compare my results with my preliminary work there is an immense difference in figures, whereby for ethanol the energy produced from one mole using the scientific figures is -1031KJ, whereas my results show that there is -420KJ of energy released. Also the scientific results for propanol are -2076, whereas my results show that for proponal -420KJ of energy was released. This significant difference was probably due to the extreme mass of heat loss during the experiment from the copper can, the spirit burner and the water; therefore less heat was transferred to energy. Also average bond energies shown in the data book were taken at 250C, whereas I took my results at a temperature of 200C, which means that a higher temperature the molecules would have had more energy as the bigger the temperature the faster the reaction; therefore more energy would have been transferred as heat after the breaking and making of the bonds. Evaluation I think that my experiment was fairly successful considering the limited equipment and conditions, as I managed to gain a set of fairly reliable results in order to draw a firm conclusion. There was only one anomalous result, which happened when testing the propanol whereby there was a result of 0. 4; therefore I did not include this in my average taking. This could have occurred for a number of reasons these are, The amount of water put into the can may not have been measured completely accurately because of the way the level of the water is seen in the measuring cylinder.   There may have not been a totally consistent height above the spirit burner. The spirit burner was not covered up during experiment; therefore the fuel could have evaporated. The length of the wick varied.   Heat could have escaped out of the sides of the spirit burner during combustion.   The copper can meant that it absorbed and transferred heat well but it lost heat to the air as well. These reasons could have had an slight effect on my results overall, whereby it will have made my results lower than the theretical results, as shown in my analysis. If I were to do this experiment again I would, Weigh the water in the copper can using burette instead of a measuring cylinder. Measure the distance between the can and the sprit burner between each fuel burnt.   Cut the wick to the same length after each fuel is burnt.   Insulate the copper can at the sides. User a Bomb Calorimeter so that draughts can be prevented and so that there is restrictions to the heat lost. The diagram below shows what the bond calorimeter would look like and how it would be set up. I think that despite the problems that occurred I still managed to gain a fairly reliable set of results in order to imply whether the energy loss for ethanol or propanol was bigger. If I were to experiment further I could experiment with a much wider range of fuels to see whether their energy loss is bigger then propanol. Also I could investigate other factors that affect the energy loss from combustion, such as, the length of the wick, the heat source and the heat capacity. In doing this I can broaden my understanding in this section of chemistry. 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Scale of Evil Essays

Scale of Evil Essays Scale of Evil Paper Scale of Evil Paper Dr. Michael Stone is a forensic psychiatrist and professor at Columbia University who has classified the levels of evil on a 22 point scale. He is the presenter of the show Most Evil, which features profiles of murderers, serial killers, mass murderers and psychopaths. The levels are one is for impulsive killing, two is for crimes of passion, seven for narcissistic killers, 10 is for Selfish murders, to remove obstacles, 14 is for acts of mercy, 16 is for multiple vicious acts, 17 is for ruthless predatory and manipulative killers, and 22 is for those that perform prolonged torture, were controlling and abusive, and had some religious aspect and often enlisting others and discarding victims. Two groups that are not on Dr. Stone’s scale are terrorists and corporate criminals. The average age evil people begin their extremely bad habits is approximately eight years old. Fire starting, animal abuse, bad relationship with parents, self-harm, manipulation, rape, and repressed emotions are common among children that have been studied. Another factor that fuels their insanity is getting away with something. It is said that there are few female killers because of the way different genders are raised. About 93% of crimes are committed by men. Dr. Stone believes that 90% of serial killers meet the standards of psychopathy, love control and domination. About half on them are loner who cannot sustain a relationship and are trying to get back at those who have abused them. An example of this is a mass murderer in Texas that killed close to 70 people. He was abused and neglected by his mother as a child, by chose not to injure her. Instead, he savagely murdered other people, mostly women. This is classified as a love-hate relationship because the killer would rather harm other people, but not the parent. Murderers of this type have most likely suffered damaged parts of their brains that control sexual functioning and self-control. Since women have an anti-social nature, they view murder as a game. Psychological profiling was mainly developed by the Federal Bureau of Investigation (FBI). It pertains to reviewing a criminal’s behavior, motives, and background to further guide an investigation. In elaborate cases involving serial killers, rapists, kidnappers, or bombers, a psychological profiler is brought in to visit the crime scene. The profiler needs to know what makes the criminal violent, and get to the root of the problem that started the series of killings. The controversy regarding offender profiling is investigators may arrest the wrong person who matched the profile. This proved true in the Beltway sniper attacks. A profile was described as a white, middle aged man, which mislead investigators. Hannibal Lecter’s profile would be a white middle age man, slick black hair that is half-way gray, goes a little past his ears, blue eyes, eyebrows about gray, height about 5†6’, and weighs about 140-170lbs, who attacks people by eating their faces. I would place Lecter at number 17 because of his multiple cannibalistic attacks, and manipulation like with the police that were bringing him food, while he was in the huge cage. He expresses psychopathic behavior for having no remorse for his victims. He appears to have a love-hate relationship with Clarice because when he escapes, Lecter has no intention of harming her. Buffalo Bill’s profile is mid-40, brown hair with a receding hairline, who is a transgender wannabe that skins his victims so he can create a woman costume. I would place him at number 18 because he is manipulative in how he faked an injury because he knew a woman’s nature is to help someone in need. Unfortunately, Catherine was that girl. Buffalo Bill knew exactly what size of a woman he wanted, so he could starve them and skin them. He does not think of his victims as people because of the way he calls them â€Å"it† when talking to them. While torturing his victims, he talks to his poodle, Precious, like a baby.

Supply chain Technologies Case Study Example | Topics and Well Written Essays - 3000 words

Supply chain Technologies - Case Study Example The U.K. high street fashion industry is a complex business with an estimated 44.5 billion in annual revenues (Barlow, 2006). It includes a wide range of enterprises in the apparel, footwear, home textiles, and accessories markets, full-price and discount retailers, and design source and selling companies. Some have their own manufacturing facilities whilst others outsource production but retain control over parts of the production process. Dominating the highly-competitive UK fashion market is Marks & Spencer, followed by discount fashion specialist brands such as Primark and TK Maxx, all competing with Burberry, Italy's Prada, Chloe (France), Hugo Boss (Germany), and Donna Karan (U.S.). Fashion and apparel manufacturing has almost disappeared in the U.K. due to cheap imports from China, which has likewise developed into a manufacturing base for the established global brands. U.K. manufacturing is focused on specialist fashion clothing and luxury products, mostly for wealthy customers in developed countries. The industry is marked by the integration of manufacturers and retailers, with the top three U.K. fashion retailers - M&S, Next, and Arcadia - remaining vertically integrated, producing and retailing their own brands. The other high street fashion brands prefer specialist retailers, outsourcing their production in different countries and sending the finished products to the U.K. The industry continues to be driven by retailers rather than manufacturers and marked by the growing polarisation between discounters and full-price retailers. The highly competitive nature of the business will continue to intensify. Full-price retailers need to capitalise on young consumer demand for distinctive designs, quality materials, and individual styles sold as "fast fashion" with items offered for a limited time before new styles are released (Doshi, 2006). The industry's operational requirements have changed in the last twenty years, since the time when high street fashion houses sourced most of their raw materials from U.K. textile manufacturers. These were then transformed by U.K. designers, most with their own production facilities, into wearable apparel or accessories for domestic and export sales. Under this traditional system, high street fashion houses competed on the basis of designs, quality brand image, and productivity and were able to command higher margins. However, with the rise of global production centres in Asia and Latin America, not only for textiles but also for finished high-quality apparel, most high street fashion houses are being squeezed towards the higher value-added design and brand marketing activities and feeling greater pressure to outsource production and improve operational management efficiencies. Aside from the growing power of consumers, price discounting pressures, and design copyright problems, the industry faces the following major operations management issues: 1) complexity of the supply chain; 2) speed to product launch and delivery; 3) managing the product mix; 4) inventory control maintenance; and 5) fast-changing technologies. Airlines The airline industry consists of a wide range of companies, from those with a single airplane carrying mail or cargo through full-service international airlines operating hundreds of airplanes of various types. These companies

Evaluation of usability of e-government services in Saudi Arabia Article

Evaluation of usability of e-government services in Saudi Arabia - Article Example Therefore, usability facilitates an avenue for relationship development since it creates a participatory form of governance (Reddick 2010, 484). Abanumy, Al-Badi & Mayhew (2005) in their study on evaluation of Saudi Arabia and Oman e-government websites accessibility examined accessibility guidelines, evaluation methods, and analysis tools. They together with Al-Wabil and Al-khalifa (n. d) in their study on a framework for integrating usability evaluation methods suggested that websites need considerable improvements to be accessible to all users. Andersen, Gronlund, Engers, and others (2011) in their work found out that broken links and poor designs are among many effects on poor usability of e-government (125). These have been leading to lower usage on websites hence reducing interaction. Reduced interaction has been witnessed to affect online business transactions which need redesigning if service delivery potential clients both locally and internationally has to be achieved (Gokmen 2010). A study by Katre (2007) on identifying available opportunities for further improvement explains the inadequate coverage of fundamental issues like user-centered design. This was well covered by the comparison done by Miguel, Pedrero and Teran (n. d) on advances in e-government usability in Spanish and Bolivian e-observatory initiative. They suggested that updated profile would be a good step towards establishing user problems on usability. This opinion backs up Al-Khalifa’s (2010, 238) opinion in hers heuristic evaluation of usability of e-government websites in Saudi Arabia. The study ascertained that among many usability problems, user satisfaction need to be tested since poor quality websites is directly proportional to bad usability. Eidaroos, Probets and Deanley (n. d) study on two Saudi Arabia websites and Aladwani & Palvia (2010) study on instruments for measuring usability

Egypt Rome and ancient China Essay Example | Topics and Well Written Essays - 250 words

Egypt Rome and ancient China - Essay Example The first light of Chinese human progress uncovered itself 7,000 to 8,000 years back, as showed by the remnants of the Daxi Culture in Sichuan and Hubei regions, the the Majiapang Culture in Jiangsu and Zhejiang territories, the Hemudu Culture in eastern Zhejiang and the Yangshuo Culture along the center spans of the Yellow River and its principal tributaries. As stated by legend, the primitive tribes that possessed the center and upper spans of the Yellow River were bound together into two effective tribes under the Yellow Emperor and Fiery Emperor and started their push southward 5,000 years back. After years of warfare, they prevailed over the Sanmiao and Jiuli tribes dynamic in south China under the administration of Chi You. A piece of the crushed tribe was fused into the tribes under the Yellow and Fiery rulers to turn into apart a piece of the Han individuals, which denoted the start of the Chinese country. Roman civilization The ancient Rome was an empire built by the Romans who acquired this by conquering most countries. The empire spread from Rome to other parts of Europe as well as Africa. The Romans followed a thriving civilization that developed from the Italian Peninsula in the early 8th century. The Roman civilization grew from monarchy to an aristocratic empire; still in the present times the influence attributed to the Romans still exists. The Romans had the distinct history that got insight from their present and future which was similarly embraced (Leakey 56).

Ancient Civilizations in China: History and Culture

Ancient Civilizations in China: History and Culture Ancient China is Located in Asia. It has the oldest surviving civilization in the world. Most people talk about other civilizations, such as; Egypt, or Rome. Ancient China has a very interesting history. In Ancient China, they had a total of 11 dynasties. No one is sure of when exactly it began, but roughly from 4000-5000 years. The aspects this essay will focus on are education, social classes, and art and architecture. Agriculture in China was is part of social classes, everyone- except the royal families- has jobs to do, and most people are farmers and silk makers, or have any other hard working job. In ancient China, there is lots of different architecture, and they are all based on their history and their rulers. In China the roofs of most buildings, were curved. It was not just because of structural use, but it had a symbolic significance. And by being tiled, it shows as a sign of wealth. And the reason they are curved is because they protected the inhabitants from evil spirits, which were believed to travel in straight lines. In China a buildings roof was normally put up before the walls. It was supported on purlins (horizontal beams) and crossbeams resting on columns rather than on triangular roof tresses. The walls which were made of wooden panels or brick were filled in later and were not load-bearing to any large extent. This system gave Chinese architects freedom to think about different silhouettes for their buildings. Another thing that is created in China, is silk. Silk is made from silk worms. You must unravel, spin and weave their cocoons. You must first take the cocoon of the silk worms, and then connect it to the machine that pulls the silk of the cocoon by a thread. Then once the silk is all off the cocoon (its still wet), they take all the wool together and put it on a curved metal rod, which stretches the wool, also they leave it to dry there. Then they have some people hold all sides of it and stretch it out till it is roughly the size of a single bed. And then they cover it. The more advanced the cocoon is, the thicker the silk is. This could be the job of many farmers. I think ancient Chinas art and architecture is always something to do with their beliefs or rulers. Social classes were very important in ancient China, The Chinese believed that strict social groups and people should behave according to their social position.  This belief that strict social groups and people should behave according to their social position, was proven by Confucius, a Chinese philosopher. Under the emperor, there were four social classes in China. The four classes were nobles officials, peasants, artisans and merchants.   The emperor and his family were the top class in China. Emperors believed that they were chosen by heaven and therefore didnt need to obey humans. An emperor expected his subjects to be loyal and obedient. The noble class in ancient China was very privileged. Nobles were usually the extended family of the emperor and empress and those people that excelled in their fields, mostly in the military. The status of nobles, however, changed often depending on who gained or fell out of favor with the emperor. When a new emperor came to power, it was common for him to favor a new set of nobles. They often became land owners so they could collect taxes from the people who lived on their land, which made them richer. If the nobles gave some of their income to the emperor, they would receive privileges and were afforded some protection in return. If nobles committed a crime that would result in them being sentenced to death, the emperor could grant them a special favor that would allow them to commit suicide, which they considered a much more honorable death. Officials were another group that had high social status in ancient China. Boys whose families could afford to send them to school began their education at an early age to become officials and were prepared to pass a difficult exam. If they didnt pass, they were usually still able to find jobs since they were considered well educated. Officials were arranged in ranks. The two most senior officials acted as advisers to the emperor. Most officials lived very comfortably and were well-respected because of their position and education. Peasants Even though peasant farmers in ancient China were one of the lowest social classes, they were still considered important because they produced the food for the rest of the society. Most peasants were very poor and led simple lives. They worked very hard and hardly ever had a day off. Peasant men worked in the fields and had to tolerate harsh conditions. They worked through the burning heat of summer and the extreme cold of winter. The harsh conditions could also spoil their crops and land, which has consumed most of their time. If the crops were spoilt, poor families had very little to survive on during the winter. If women wove and sewed cloth, they could help provide clothes for their families and they could sell any excess items to earn more money. Even the poorest peasants had to pay taxes, even if their crops were not successful. This left many families, during the winter months, with little to eat.   Artisans were part of the normal class and included painters, carpenters, potters and jewelry makers. Artisans made more than farmers but less than the merchants. They didnt have a good social status but they were respected for their skills. Metalworkers became very important during the Han period. Metalworkers produced weapons and many useful everyday objects, like cooking pots. Weavers worked with silk, which was very valuable. The merchant class included traders, animal breeders and money loaners. Merchants were thought of as the lowest social class in ancient China. Even though they have a low social status, some merchants became very rich and lived in luxury. .During the Han dynasty, some merchants became so rich that they might have been a threat to the emperor and the nobles. The richest merchants attained their wealth by investing money in land and properties. Several merchants, though, were not as wealthy. In order to limit their wealth, merchants had certain restrictions placed on them. Such restrictions included paying heavy taxes and being sent away to join the army. Slaves had existed in ancient China, but they made a very small percentage of the population. Some slaves were relatives of criminals while other sold themselves or their children as slaves if they were very poor. Ancient China appears to be very serious about social classes. In fact, I think everybodys lives ruled around their class. Most of the children in ancient China never got a chance to go to school at all. They had to work hard in the fields, feeding the  animals, weeding the vegetables, planting  rice, or taking care of their  little brothers or sisters. But if you were a boy, and your father could have spared you from the fields, he would send you to school. Beginning in the  Han Dynasty, many schools used to be free, and the emperor paid for their fees. If there were no schools in your village, you might have had to go live with relatives or with strangers in another bigger town. Boys would normally start school when they were six years old. Primary schools were very small, and only had one teacher for the whole school. There was one chair for the teacher, but all the boys had to sit on stools. You were supposed to go to school every day, without weekends, from 6:00 in the morning until about 4:00 in the afternoon. They didnt have math lessons, or science. You learned how to  read and write, a nd then you memorized many pages of  Confucian philosophy  and learned how to write essays and poetry, and how to  paint pictures. Then, you stayed at this school until you were sixteen or seventeen, which is when you are ready for the first examinations. Education in China was quite important, since it was what their futures depended on. If they were not educated, they would most likely work at farms, or work for others in a low social state (if they were not rich). When they are educated, it gave the people a chance at having a better life. Maybe they would be assisting the royal families, and not as a slave. They could be advisors, or maybe even teachers. I think they needed education quite a lot, in order to be anything big in life. I think ancient China is very interesting and complicated. I think the past was quite hard as it seems most people, if they are not rich or dont have any royal relations, dont get any special treatment, in fact, they barely get and good treatment at all. They had seemed to have lead interesting lives and have various beliefs. Their civilization lasted for a very long time, and they have a very developed society ever since it had started. Bibliography Allan, Tony.  Ancient China. New York: Chelsea House, 2007. Print. Allison, Amy.  Life in Ancient China. San Diego, CA: Lucent, 2001. Print. Ancient China Social Classes.  Translation Services | Interpreters | Intercultural Communication | Cross Cultural Training. Web. 17 May 2010. . Chinese Roofs.  Oracle ThinkQuest Library. Web. 4 May 2010. . Eyewitness Travel Guide China.  Dk Pub, 2010. Print. History of Education in China.  Wikipedia, the Free Encyclopedia. Web. 16 May 2010. . History of Silk.  Wikipedia, the Free Encyclopedia. Web. 22 Apr. 2010. . Http://homepage.mac.com/zichi/.Pictures/blogger2/silk-worms.jpg Http://seaholmeps.files.wordpress.com/2009/03/chinese-architecture.jpg Http://www.cntravel.biz/China/ancient-China/confucius.gif Http://www.kavehfarrokh.com/wp-content/uploads/2009/10/terracota-army.jpg http://www.skwirk.com.au/p-c_s-14_u-173_t-471_c-1707/social-hierarchy/nsw/history/ancient-societiesChina/ancient-China:-part-i Shang Chou (Zhou) Dynasties Ancient China for Kids.  Ancient China for Kids Main Index. Web. 2 May 2010. . Ten Laments Technology and Education in Ancient China.  Logoi.com An Educational Site about Cultures, Languages and History. Web. 17 May 2010. .

The Myth of the American Dream :: ESL Essays

  Ã‚  Ã‚  Ã‚   Striving for success nobody thinks that he follows somebody’s well planned way. A single person or a small group does not create the notion of success, but it is created by our whole society. The myth of instant wealth is one of the most popular myths society uses. In fact society uses the hope of instant wealth to make people work harder. The fact that they do not have a real chance of obtaining that wealth by competing in the economic system stays invisible to the most of people.     Ã‚  Ã‚  Ã‚   When we imagine a successful person, we see a person, who is working on some company and is busy working all the time. This person has a nice car and beautiful apartment or house, where he does not spend much time because he is so busy. We get this impression since we were born. Movies, magazines, and news – everything supports this notion of a successful person.     Ã‚  Ã‚  Ã‚   Interesting thing is that notion of success did not change very much since the beginning of last century. There happened some variations but the idea stayed the same: working hard will bring you to the top of the society circle. This idea became very popular in the end of eighteen hundreds thanks to the stories, written by Horatio Alger. In spite of similarity of all his books, his works had an edition of hundred thousand copies. Simple idea of getting into upper class circles starting from the very down, was accepted by society as a model of success achievement. People have believed that if they will work hard than they can achieve success.     Ã‚  Ã‚  Ã‚   Richard Hunter, main character of the book â€Å"Ragged Dick† has been a typical example of American notion of success. According to this book everybody can became well recognized and financially prosperous if they would work hard and show their merit. Dick, â€Å"a young gentleman on the way to fame and fortune,† as his friend Fosdick from the story â€Å"Ragged Dick† describes him in the end of the story, climbs on the social ladder, starting from the very bottom. Being absolutely illiterate and having no money in the beginning, Dick gets into business circle of people, by working hard and showing his merit. Why did this story become so popular in the end of eighteenth century? People always need hope and this story gave hope to everyone. If person from the lowest class of society could get into the high class then everyone else was able to do the same.

Shapes of Ice

Shapes of ice do depend on how fast they felt, no doubt about it. Here is what people ask. â€Å"Does the shape of an ice cube affect the rate at which the ice cube will melt?†, and the answer to that question is a definite yes.Have you ever looked at an ice cube and just watched it melt?It is surprisingly very, very interesting. All of us have better things to do besides that, but if you have, you won't regret it. Anyway, the answer to that experiment is yes because it is scientifically proven. Many scientists in the world have wondered this same question, and they all have turned out to get the same answer. When these people finally got their answer, they all have gotten close, if not the exact same answers if they have chosen the shapes to form. Scientists have done this experiment in many ways, such as choosing different shapes to form and melt, choosing the amount of water to freeze, and the temperature of the room they have to melt the cubes.( University of Illinois, 2007). One important thing that is looked at is the scientists' hypotheses. Many scientists' hypotheses are very different, knowing it is an educated guess, but the end result shows they all come up with nearly the same answer, and that is the rectangular ice cube will melt the fastest, no matter how large they make the cube. ( Zimmermann, 2017). The most complicated question behind this experiment is why is it the rectangular shape that melts the fastests. The rate at which the ice cubes melt is also called the fusion rate. Ice melts when a warmer medium, such as air or water comes into contact with the ice surface. Also, in order to know exactly which shape melts the fastest, they need to have the same volume, or the experiment will be pointless. An important thing to know is the greater the surface area, the quicker the ice cube will melt. Other people's experiments have been slightly different than what we have here, but they are known to choose the rectangular shape as one of their shapes the majority of the time. (â€Å"Ice Melting†, 2013). It also states that each scientists went through about the same struggles during the process of the experiment. ( l Zimmermann, 2017.). The most simple struggle was getting the particular shape out of the container without having it break or making it deformed. Because the shapes weren't the normal shape, it is tricky to get it out of the ice cube tray. Many scientist have had a question, and that is the exact opposite of the question people usually deal with. Not how fast they melt, but how fast they freeze. All in all, the rectangular shape, because it is flat and has more surface area than the others, will melt the fastest. If you think and picture in your mind, the larger the surface area is, the more heat will get to it at the same time, and of course heat melts ice. ( David Zimmermann, 2017.) ( â€Å"Shapes of Ice Cubes†, n.d.)

French Indefinite Demonstrative Pronouns

French Indefinite Demonstrative Pronouns There are two kinds of demonstrative pronouns: variable demonstrative pronouns (celui, celle, ceux, celles) which agree in gender and number with their antecedent, and invariable (or indefinite) demonstrative pronouns (ce, ceci, cela, à §a), which  do not have an antecedent and their form does not vary. Indefinite Demonstrative Pronouns Invariable demonstrative pronouns, also called indefinite  or neuter demonstrative pronouns, do not have a specific antecedent and thus do not have different forms for gender and number. Indefinite demonstrative pronouns can refer to something abstract, like an idea or a situation, or to something indicated but unnamed. On the other hand, a variable demonstrative pronoun  refers to a specific, previously mentioned noun in a sentence; this pronoun must agree in gender and number with the noun it refers back to.   There Are Four Indefinite Demonstrative Pronouns 1. Ce is the impersonal, simple indefinite demonstrative pronoun. It can mean this or it, and is used mainly with the verb à ªtre, either in the basic expression cest or in various impersonal expressions, which are expressions without a definite subject that begin with C​est  or Il​ est.   Ã‚  Ã‚  Cest une bonne idà ©e!Thats a good idea!   Ã‚  Ã‚  Cest difficile faire.Its hard to do.   Ã‚  Ã‚  Cest triste de perdre un ami.  Its sad to lose a friend.   Ã‚  Ã‚  Ãƒâ€°tudier, cest important.Studying is important. Ce may also be followed by devoir or pouvoir à ªtre.Ce doit à ªtre un bon restaurant.This must be a good restaurant.   Ã‚  Ã‚  Ce peut à ªtre difficile.This might be difficult. A less common and more formal usage (especially in written French) of ce can be used without a verb:   Ã‚  Ã‚  Jai travaillà © en Espagne, et ce en tant que bà ©nà ©vole.I worked in Spain (and this) as a volunteer.Elle la tuà ©, et pour ce  elle est condamnà ©e.She killed him, and therefore/for this she is condemned. Note that ce is also a demonstrative adjective.2. 3. Ceci  and cela are used as the subject of all other verbs:   Ã‚  Ã‚  Ceci va à ªtre facile.This is going to be easy.   Ã‚  Ã‚  Cela me fait plaisir.That makes me happy. Ceci and cela are used with pouvoir or devoir when those verbs are not followed by à ªtre.   Ã‚  Ã‚  Ceci peut nous aider.This could help us.   Ã‚  Ã‚  Cela doit aller dans la cuisine.That has to go in the kitchen. Ceci  and cela can also be direct and indirect objects:   Ã‚  Ã‚  Donnez-lui cela de ma part.Give him this from me.   Ã‚  Ã‚  Qui a fait cela?Who did this? Notes Ceci is the contraction of ce ici (this here), while cela is the contraction of ce l (this there). Ceci is rare in spoken French. Just as l commonly replaces ici in spoken French (Je suis l  Ã‚  Im here), French speakers tend to use cela to mean either this or that. Ceci only really comes into play when one wants to distinguish between this and that:   Ã‚  Ã‚  Je ne veux pas ceci, je veux cela.I dont want this, I want that. 4. Ça is the informal replacement for both cela and ceci.   Ã‚  Ã‚  Donne-lui à §a de ma part.Give him this from me.Qui a fait à §a?Who did this?   Ã‚  Ã‚  Ãƒâ€¡a me fait plaisir.That makes me happy.   Ã‚  Ã‚  Quest-ce que cest que à §a?What is that?   Ã‚  Ã‚  Je ne veux pas ceci (or à §a),  je veux à §a.I dont want this, I want that.

Profile of Death Row Inmate Patricia Blackmon

Profile of Death Row Inmate Patricia Blackmon Patricia Blackmon is on death row in Alabama for capital murder in the death of her 28-month-old adopted daughter, Dominiqua.  Blackmon had adopted  Dominiqua nine months before she was murdered. The Crime On May 29, 1999, Patricia Blackmon, age 29, called 9-1-1 in Dothan, Alabama because her daughter Dominiqua was not breathing. When paramedics arrived at Blackmons mobile home, they found Dominiqua lying on the floor of the master bedroom she was wearing only a diaper and blood-soaked socks, was covered in vomit, and she was not breathing. There was a large bump on her forehead and blood on her chest. After the paramedics attempted to revive her, she was transported to Flowers Hospital Emergency Room where she died shortly after arriving. Two doctors, one of them being  Dominiquas pediatrician, Dr. Robert Head, examined the child and found that she had multiple bruises and contusions and an imprint of the sole of a shoe on her chest. They also observed several older scars on Dominiqua, that were from previous injuries and in various stages of healing. The Autopsy Included in the 30 separate injuries found on her body, the medical examiner Dr. Alfredo Parades found bruises on the front part of her lower chest and upper abdomen and around the right groin. She had also suffered a fractured leg. He also found that Dominiqua had two broken bones and many other injuries that were in various stages of healing. Parades concluded that her death was due to  multiple blunt-force injuries to her head, chest, abdomen, and extremities.  Another discovery found on Dominiqua was an imprint of the sole of a shoe on her chest that was so clearly defined that it was captured in a photograph taken by the doctor. The Trial Dr. James Downs, chief medical examiner for the State of Alabama, testified that he compared the images taken of the shoe print to sandals Blackmon was wearing on the day of the murder. It was his opinion that the sole of the sandals matched the imprint embedded in Dominiquas chest. Downs also said that he believed  Dominiqua was struck with a pool cue resulting in her most recent injuries. Wayne Johnson, Blackmons father-in-law testimony showed that Blackmon was the only person caring for Dominiqua on the evening of the murder, up until the time the paramedics arrived at Blackmons home at around 9:30 p.m. Johnson testified that on the night Dominiqua was killed, he saw Dominiqua  earlier in the evening and she seemed fine, playing and acting normally. He said Blackmon and Dominiqua left his house at around 8 p.m. A search of Blackmons mobile home uncovered several blood-splattered items. Forensic tests found the blood on a broken pool cue, a childs T-shirt, a pink flat bed sheet, a quilt, and two napkins. The blood found on all of the items matched Dominiquas blood. Blackmons Defense In her defense, Blackmon said that the child was injured when she fell off of the bed. Blackmon called several character witnesses to testify in her defense. Judy Whatley, an employee of the Department of Human Resources, said that in her opinion, Blackmon and Dominiqua had a good relationship. Whatley had contact with Dominiqua and Blackmon once a month for five months before August 1998. Tammy Freeman, Blackmons neighbor, testified that she frequently left her children under Blackmons care. Convicted The jury convicted Blackmon of capital murder. A separate sentencing hearing was held, at which the State relied on the aggravating circumstance that the murder was especially heinous, atrocious, or cruel to support a death sentence. After the sentencing hearing the jury, by a vote of 10 to two, recommended the death penalty. Appeals In August 2005, Blackmon appealed to the court, arguing that the State failed to prove that the murder was especially, heinous, atrocious, or cruel as compared to other capital murders.  She argued that the State failed to prove that Dominiqua was conscious during any of the  attacks and that she suffered. Blackmon believed that Dominiqua was knocked unconscious before Blackmon beat her, and as a  result, the child did not feel the pain of being beaten. Her appeal was turned down. Patricia Blackmon now sits on death row at Tutwiler Prison for Women in Wetumpka, Alabama.

Mission Statement Assignment Example | Topics and Well Written Essays - 250 words - 4

Mission Statement - Assignment Example It also aims at teaching them to adhere to the spirit of rules thus instilling habits that lead them to better and healthier lives. In addition, the program aims at building community by engaging the young people and creating an environment through which other people can also enjoy the experience. The issues that the program is likely to face include: firstly, insufficient funds to carry out all the obligations. Being a new program, we are not likely to get sponsors. I will address the problem by organizing fundraising events to ensure that we get enough funds. I will also look for charity organizations that can support us however small. Secondly, the program is likely to have poor reception (strong opposition) in the area because many parents prefer curricular activities (Murphy, 2011). I will carry out awareness programs aimed at educating parents on the benefits of co-curricular activities. This will make the parents to allow their children to join the program. I will also encourage my students to balance between athletics and class work to ensure that they excel in both. Finally, we are likely to be faced with youth sports violence. For instance, some parents being unhappy about unfair treatment their children receive and hence verbally abusing the coach (Murphy, 2011). I will ensure that equity and equality is observed all the time and also that all complaints are listened to and addressed fully. Such parents will be made to understand the role youth sports play in the society and not viewing them as just games of

I am awesome Essay Example | Topics and Well Written Essays - 250 words

I am awesome - Essay Example Awesome managers listen to the staff since they offer insights on how to run the property better. I always share what I know with my staff not only to foster a sense of empowerment but also to make my job easier. Teaching is part of my job as I equip my staff with knowledge and skills that they can use to perform their job without constant supervision. Having regular collaboration sessions with my staff gives me a well of ideas on areas to improve in including customer satisfaction. Dedicating some little time a day to read industry news keeps me abreast with the current affairs and emerging trends in the industry (Daum, 2010). I always ask for help since I cannot pretend that I know everything. Even though everybody expects me to handle virtually everything that comes my way, I have limitations just like any other human being. I do not get embarrassed to admit not knowing an issue if confronted, and this helps me to get help from my staff. I am liberal and welcome criticisms. Instead of being defensive, I take criticism as a stepping-stone to get better at the job. I also motivate my staff and challenge them to achieve bigger. I give credit where it is due and goes an extra mile to know my staff at personal levels. I don’t micromanage my staff and always have the organization’s interest at