Learn How to Solve an Entropy Change Problem

For problems involving changes in entropy, knowing if the change should be positive or negative is a useful tool to check your work. It is easy to lose a sign during thermochemistry homework problems. This example problem demonstrates how to examine the reactants and products to predict the sign of the change in entropy of a reaction. Entropy Problem Determine if the entropy change will be positive or negative for the following reactions:A) (NH4)2Cr2O7(s) → Cr2O3(s) 4 H2O(l) CO2(g)B) 2 H2(g) O2(g) → 2 H2O(g)C) PCl5 → PCl3 Cl2(g) Solution The entropy of a reaction refers to the positional probabilities for each reactant. For instance, an atom in gas phase has more options for position than the same atom in a solid phase. This is why gases have more entropy than solids. In reactions, the positional probabilities must be compared for all the reactants to the products produced. Therefore, if the reaction involves only gases, the entropy is related to the total number of moles on either side of the reaction. A decrease in the number of moles on the product side means lower entropy. An increase in the number of moles on the product side means higher entropy. If the reaction involves multiple phases, the production of a gas typically increases the entropy much more than any increase in moles of a liquid or solid. Reaction A (NH4)2Cr2O7(s) → Cr2O3(s) 4 H2O(l) CO2(g)The reactant side contains only one mole where the product side has six moles produced. The was also a gas produced. The change in entropy will be positive. Reaction B 2 H2(g) O2(g) → 2 H2O(g)There are 3 moles on the reactant side and only 2 on the product side. The change in entropy will be negative. Reaction C PCl5 → PCl3 Cl2(g)There are more moles on the product side than on the reactant side, therefore the change in entropy will be positive. Answer Summary Reactions A and C will have positive changes in entropy.Reaction B will have negative changes in entropy.

Rhetorical Analysis Of Budweiser - 1924 Words

Presli Adams Mr. Tucker English 1310- Rhetoric and Writing October 2017 Rhetorical Analysis of Budweiser Super Bowl Commercial For this essay I will be using the commercial made by Budweiser for the 2015 Super Bowl, â€Å"Lost Dog.† This advertisement is about a tiny lost puppy getting far away from home and most importantly, the friendship between this puppy and some Clydesdale horses. In the beginning of this commercial, the puppy is shown hiding under some hay, and then he proceeds to jump into a random trailer which initially gets him lost far from home. There is no dialogue in this commercial aside from the music in the background, but the advertisement shows the distress of the owner through facial expressions and scenes where he puts†¦show more content†¦The company wants people to know that your â€Å"Best Buds† or your best friends, will always be there for you in times of trouble, or, perhaps, when a wolf is trying to kill you. Using animals is a very strategic way to appeal to almost everyone. Using baby animals, like the puppy, is even better. Budweiser doesn’t men tion beer once during this whole advertisement which actually assists the effectiveness instead of hurting it. If they would’ve shown the owner drinking beer while his puppy was gone it would’ve unintentionally associated alcohol with sadness. Even if people DO drink alcohol or even Budweiser when they are in emotional distress, showing it during this commercial could’ve quite possibly had a very negative impact with the audience, maybe even affecting them subconsciously. Instead, Budweiser creates an innocent story about a puppy with absolutely nothing to do with beer. Perhaps this may cause the audience to associate this particular alcohol with innocence or harmlessness. The commercial has excellent Kairos. As Americans, the Super Bowl is the closest thing to a cultural event that we can claim. A Budweiser commercial during the Super Bowl is already going to have extreme effectiveness. Beer and football is already a perfect mixture, but they add puppies which basically demonstrates all three of the things American’s love the most. Budweiser knows exactly what they are doing while targeting the Super Bowl audience. Not only areShow MoreRelatedRhetorical Analysis : Budweiser1143 Words   |  5 Pagesthat particular product. The speaker is â€Å"Budweiser†, which isn’t determined until the end of the commercial when the words â€Å"Budweiser† appear on the screen. The audience could be assumed as anyone over the age of 21, or reaching 21 within a few years. There isn’t actually a definite audience due to the ability to persuade younger watchers such as a 16 year old, if they can leave a lasting impression on that individual it is likely they will drink â€Å"Budweiser†, or at least try it once they become ofRead MoreRhetorical Analysis Of Budweisers Lost Dog1004 Words   |  5 Pagesutumn Lewis Ms. Caldwell-Thomas English 101-010 12 October 2017 Rhetorical Analysis: Budweiser’s Lost Dog Budweiser is known for creating advertisements that convey messages that you wouldn’t otherwise tie with beer. In one of their more popular commercials â€Å"Lost Dog†, they attempt to show that your â€Å"buds† will always have your back, just as Budweiser will always be there for you. Budweiser managed to relate this life lesson to their notable company and a wide-range of viewers. In the â€Å"LostRead MoreRhetoral Analysis : Budweiser Commercial1170 Words   |  5 PagesRunning head: RHETORIC ANALYSIS ESSAY​​ 1 Rhetoric Analysis Essay Name Institution Rhetoric Analysis Essay Introduction Budweiser has produced many commercials for marketing purposes. However, none of those are as iconic as the one they used to pay tribute to the victims of the September 11. Known as the Budweiser commercial, some of the television viewers only had a chance to watch it from YouTube because it was aired just one time February 3, 2002, during theRead MoreRhetorical Analysis Paper: Budlight Advertisement715 Words   |  3 PagesRhetorical Analysis Paper: BudLight Advertisement Budweiser is one of the best-known brands of beer in America. Their ads and commercials have always been known for being humorous and entertaining. Millions of people look forward to seeing the Super Bowl half-time commercials mostly because of Budweiser’s notorious commercials. Budweiser takes advantage of its reputation and makes commercials that are witty and fun for people to watch. They incorporate humor and a certain kind of sex appeal into

Bottle nose dolphins Free Essays

Dolphins live in large water bodies which may either be salty or fresh waters. They are thirty two types of dolphins where by bottle nose dolphin is on of them. Bottle nose dolphins are taxonomically classified as follows; they belong to the class animalia, order- catecea, sub order-odontoceti, family-delphinidae, genus-turssiops and speacies-truncutus. We will write a custom essay sample on Bottle nose dolphins or any similar topic only for you Order Now Bottle nose dolphin is the most well known cetaceans’. This is due to its use in marine parks, research activities, and in navy sensing example it’s used by United States navy to sense an enemy. The bottle nose dolphin is mostly found at along the shores of United States. Through research scientists have been able to show that they are two species of bottle nose dolphins existing. The common one is turssiops trancutus which is found in most warm tropical oceans. Their color sometimes almost blue has a dark line from beak to blowhole. The second type of bottle nose dolphin is the indo-Pacific bottle nose dolphin turssiops aduncus living in waters around India-Australia and south china. Bottle nose dolphin hunting and strategies Bottle nose dolphin show aggressive behavior in its environment as they pursue prey and predators they fight among themselves when they are competing for food. Some researchers’ have established that some species of bottle nose dolphins kill harbor porpoises. However they do not eat them but they just kill the porpoises to reduce competition for food. Dolphins have large dorsal fins which help in movement, the fins will a dolphin to quickly attack its prey, the fins therefore play a major role in hunting where if the fins were not large enough it would be very difficult for the dolphin to feed. The main menu of the bottle nose dolphin consist of small fish and occasionally feed on squid, crabs ,shrimp and other small animals. Normally they have got cone-shaped strong teeth which they use to grasp their prey. Each bottle nose dolphin is capable of hunting for its own food, but when they are many they apply some skills and strategy whereby they communicate through squeaks, whistles, body language, slapping of tails and butting of head to alert fellow dolphins on presence of food source. They are able to direct a shoal of fish and keep them together as they kill and eat them. They also practice fish whacking where by the stunned fish and thrown out of water where it is easily caught. Bottle nose dolphins also locate prey by producing sound and latter listening to the echo. The echo is transmitted through two small ears near the eye . thus when the echo is returning the object of interest is approached as the echo grows louder. This process of hunting is called etholocation. Bottle nose dolphins have got a strong signal sense; advanced spectral qualities which are well distributed thus help in echolocation qualities. The bottle nose dolphins have sharp eye sight located at the sides of the head and have a reflecting membrane at the back of their retina which aids vision in time of dim light. They are also able to both in deep water and air. Conclusion: From the above discussion it is clear that Bottle noser dolphins have unique hunting skills, they have large dorsal fins that help in fast movement which help it catch its food, there are however many types of dolphins, there are over 32 types of dolphins which have differing characteristics and hunting strategies. References: Sea world organization (2008) bottle nose dolphins, retrieved on 26th May, available at http://www. seaworld. org/infobooks/Bottlenose/home. html How to cite Bottle nose dolphins, Papers

Improving Employee Performance J C Penny Essay Example For Students

Improving Employee Performance J C Penny Essay Jackie JacksonObjectivesOrganizational effectiveness Motivation in the workplaceHow to improve members behaviors and attitudesTeam building through different stages of developmentManaging conflict and changeOrganizational EffectivenessWegmans once said that we can achieve our goal only if we fulfill the needs of our own people. To our customers and our people we pledge continuous improvements, and we make the commitment:Every Day You Get Our Best.This statement exemplifies a move that many organizations are making to take care of their customers and employees (WoW, 2014). Organizational effectiveness is the concept of how effective an organization is in achieving the outcomes the organization intends to produce. Organizational Effectiveness groups in organizations directly concern themselves with several key areas (Wikipedia, n.d.). Motivation in the WorkplaceWhat is motivation and why is it so important? Motivation is defined asa process used to direct, intensify, and provide guidance to stimulate humanbehavior in an effect to achieve an organizational goal. Maslow hierarchy of needs theory is one of the most popular theories thataddress human need because it covers all levels of the organization. Management by Objectives (MBO) is a methodical approach thatallows the employees and management team to focus on goals thatare realistic. How to improve members behaviors and attitudesAnalyze methods to improve behaviors and attitudesPropose team buildingManage conflictTeam Building Through Different Stages of DevelopmentTeam development is extremely common in todays business environment because there are many formsand uses for groups and teams in business (WoW, 2014). Team development is fast becoming a means for competitive advantage in the workplace. But most organizations do not understand that there is a difference between a group and a team. Team Consist of two or more individuals, but is brought together to complete a specific task, mission, or goal. Group Consist of two or more individuals that work independently toward corporate goals. Managing Conflict and ChangeChange in an organization inevitably results in conflict. Often, employees resist having their comfort zones disturbed; therefore, management may gradually introduce change to the environment. Change occurs for a number of reasons, such as a corporate reorganization, new management, or market shifts, consequently causing conflict between individuals or groups. Conflict often carries a negative connotation. It is critical that management direct change using a systematic method to reduce any conflict that may occur, including effective communication methods (M.U.S.E. 2013). Conflict between individuals in an organization and between two or more positions will always be a part of the corporate environment. Although conflict wastes valuable time, it can release creative problem solving, leading to new innovations. Management should manage the conflict so that it becomes beneficial to the organization. So when two employees are having some difficulty, what can you do? REFERENCES:Organizational Effectiveness ( n.d.) Retrieved 1/29/2017. From https://en.wikipedia.org/wiki/Organizational_effectivenessScott, Sherrie. (2017) Motivation and Productivity in the Workplace. Retrieved 1/30/2017. Fromhttp://smallbusiness.chron.com/motivation-productivity-workplace-10692.htmlLee, Shirley. ( n.d.). Five Stages of Team Development. Retrieved 1/30/2017. From http://www.innovativeteambuilding.co.uk/five-stages-of-team-development/Words of Wisdom, LLC. ( 2014). Organizational Behavior. Retrieved 1/30/2017. Fromhttps://ebooksbvd.my-education-connection.com/read/978194392626 8/9781943926268_1_xhtml

‘Football Academies and the Migration of African Football Labour to Europe Essay Example

‘Football Academies and the Migration of African Football Labour to Europe Essay The migration of African players into European leagues and teams can be suggested to have negative effects upon African football (Darby, 2007). Within this essay it will try and critique the issues that Darby (2007) has concerns about. Darby (2007) identifies due to the financial superiority of the west, Africa have become the suffering nation due to such neo imperialistic behaviour. With Bale and Maguire (1994) suggesting with the dependency theory Africa have become the dependant underdevelopment state; due to the reliance of financial superiority of the west. For example the more successful teams within Europe developing new academies, to go in search of a new market in which to buy and sell product (African footballers) into higher rise football teams; thus producing more income for their team. Although Darby (2007) does mention in parts that certain academies can provide high level African athletes; the impression given is one of which the academies are set up for the sole imperialistic nature in which to produce high level athletes. Such suggestion from Darby (2007) could be associated with a hyper globalist pessimist; in that globalisation is occurring but in contrast there are things that could be done to improve matters. In connection, with suggestions from Crouch (2011) implies due to neo liberalisation, other companies (McDonalds and Nike) from the west take advantage of the raw talent (labour); that Africa provide due to its low cost and affordability. Crouch relating to Darby’s paper in that with the exploitation of different types of academies; certain associations can exploit the raw talent that Africa provides. Furthermore Darby (2007) relates to the neo-colonial importance involved with such exploitation of labour. We will write a custom essay sample on ‘Football Academies and the Migration of African Football Labour to Europe specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on ‘Football Academies and the Migration of African Football Labour to Europe specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on ‘Football Academies and the Migration of African Football Labour to Europe specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Implications for Africa could arise with the academies producing a dependant relationship with the European countries (Klein, 1991); in relation again to economic superiority of the west, with Western football interests gaining power through the success of the European league setup. Further implications could arise from such ‘exploitation’; in association to Africa, Brazil are dealing with similar problems, due to mass exodus of skilled talent to European countries rendering Brazilian football perpetually dependent upon labour exportation (Alvito, 2007). Africa could also become dependent upon broadcasting and media

isolation essays

isolation essays Isolation is defined in the Websters Encyclopedic Dictionary as occurring when something is placed apart or alone. Naturally, humans are faced with feelings of isolation at certain times throughout their lives. However, there are particular types of isolation that capture the imagination of writers and artists. Canadian authors are drawn towards the theme of isolation in their literature. Characters portrayed in Canadian literature are either spiritually, emotionally, physically or geographically isolated. Isolation can either have a positive or negative affect on humans. Humans are often driven mad by isolation, where their only means of escaping is by death. Others who are isolated develop psychotic tendances which cause them to destroy themselves, as well as others. Throughout Canadian literature, isolation has an extremely negative effect upon the development of the individuals character. In the short story The Lamp at Noon, Sinclair Ross portrays the young woman Ellen as a character who is driven mad by her geographical isolation. Throughout this story, Ellen struggles to break free from the poor, barren and hopeless prairie landscape she and her family inhabit. Ellen has little contact with other people. Living in a two bedroom home and once a month to town with not a penny to spend was not the type of environment Ellen wanted to live in ( Ross, 36). Feelings of loneliness and isolation surround Ellen, trapping her in an inevitable, Undoubtable, Ellens geographical and physical isolation were not the only components of Ellens insanity. Ellen felt emotionally isolated from her husband, Paul. Paul was too preoccupied with his farm to even acknowledge Ellens feelings of isolation. Ellen addresses Paul many times, trying to convince him to leave the deserted prairie. Paul does not listen to Elle...

Athletic Involvement

College Essay Topic #2 7 Essay Tips for Writing a College Application Essay About Your Sports/Athletic Involvement Almost as popular as the â€Å"My Grandmother† college application essay is the essay about sports.   If you are planning to write a sports essay, you risk boring the admissions committee as much as would a mediocre ballgame. Here are some tips to make sure your college application essay about your sports involvement makes a good impression: 1.  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Whatever you do, do NOT write an entire play-by-play essay about the â€Å"Big Game† – even if you scored the winning touchdown or home run. This topic is way overdone.   You can certainly write a paragraph about the game, but then move on to another aspect of your sports involvement. 2.  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Consider writing about the experience of being on a team.   What does it take on a day to day basis?   What have you learned?   How have you grown?   How have you balanced your commitment to sports with your academics? 3.  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Don’t be afraid to write about your shortcomings.   If you start in a place where you didn’t know something, or where you weren’t on your best behavior, or even where you were injured, then you have somewhere to go/grow to. 4.  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Consider writing about your particular role in the team dynamics.   Do you have a leadership role?   If so, what’s your leadership style and how does that style show up in other parts of your life? 5.  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Consider writing about what it takes to play your particular position.   Offense?   Defense?   Pitcher?   Outfield?   Team play or individual sport? What metaphors can you draw from the position you play or from your strengths in the game? Do you find yourself playing a similar role in life to the one you play on the court or the field or maybe even the opposite role? For instance, if you play offense, do you end up being aggressive about winning or going after things in other aspects of life?   Or has playing offense taught you strategies to defend yourself or your positions in life? 6.  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Stay humble even if you are a big winner!   You can share impressive facts and showcase your talent as long as you really share something about what you’ve learned and how you’ve grown. 7.  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Talk about people and other topics that interest you, not just about the game.   If you’re all about the game, you don’t show your ability to interact with future classmates and you miss out on opportunities to sell yourself to the committee.   Colleges are looking for leaders – and leadership takes more than winning a game. For examples of successful college essays, The Essay Expert recommends Accepted!   50 Successful College Admissions Essays by Gen and Kelly Tanabe. Still not sure how to write a great college application essay about your sport?   Contact The Essay Expert for a FREE 15 minute consultation.