Enthalpy‚ represented by the sign ∆H in kJ/mol‚ is the heat change in a reaction. It shows whether how much heat is released or absorbed during the reaction. If the reaction is endothermic‚ the enthalpy would be positive and if the reaction is exothermic‚ the enthalpy would be negative. During a chemical reaction‚ which consists of breaking and creating bonds‚ heat is either absorbed or released. In this lab‚ the reaction uses the disassociation of an ionic compound ammonium nitrate shown in the
Premium Entropy Thermodynamics Temperature
MTN Group is a South Africa-based multinational mobile telecommunications company‚ operating in many African and Middle Eastern countries. Its head office is in Johannesburg.[ The MTN brand has been rated as the country’s most valuable brand‚ according to a league table of both African and South African brands compiled by Brandirectory. It is valued at an astounding US$4.7 billion‚ almost double that of its nearest rivals on the continent‚ Vodacom‚ Orascom Telecom (Egypt)‚ FNB and Standard Bank.
Premium Mobile phone Mobile network operator Africa
Greece has a mixed capitalistic economy with a large public sector that accounts about half of GDP. Besides‚ Greece is a major beneficiary of European Union aid‚ which equal to about 3.3% of annual GDP. In addition‚ Greece is an agricultural country and one of the poorest countries of the European Union with the second to lowest average income‚ after Portugal. In January 2002‚ Greece adopted the euro as its currency. The adoption provided Greece‚ formerly a high inflation risk country under drachma
Premium European Union Macroeconomics Debt
Corporate Headquarters Address: Walmart 702 SW 8th Street Bentonville‚ Arkansas 72716-8611 Phone: 479-273-4000 Web URL: http://walmartstores.com/ Walmart’s Mission: “ We save people money so they can live better” Saving people money to help them live better was the goal that Sam Walton envisioned when he opened the doors to the first Walmart®. This focus drives everything we do at Walmart. And‚ for the millions of customers who shop in our stores around the world each week‚ it means they
Premium Wal-Mart Revenue Discount store
Black Death: This started in Asia and spread throughout the Mediterranean and Europe killing thousands of people. The plague created a lot of economic‚ religious‚ and social problems. It took 150 years just for Europe’s population to recover. The most common symptom was buboes in the groin‚ neck and armpits. This effected cultural development as many people died and they had to almost completely start over. Black Death in Medieval Culture: The Black Death had a huge effect on medieval culture
Free Black Death Middle Ages
Essay One World Wrestling Entertainment‚ also known as WWE‚ is an American a publicly traded and privately owned entertainment company that operates in the sports entertainment industry. The program is broadcasted in over 150 countries and 30 different languages. It major revenue sources are music‚ film‚ product licensing and direct product sales. It is the largest professional wrestling promotion in the world‚ and reaches more than 650 million homes internationally‚ bringing in about 13 million
Premium World Wrestling Entertainment
There were many great directors during the 19th century era of film‚ but one renowned filmmaker of that time was Alfred Hitchcock‚ who “is among the few directors whose films almost constitute a genre unto themselves‚ the suspense-filled “Hitchcock thriller” ’ (2 Dixon & Foster 102). In his career‚ Hitchcock directed many films from the late 1920s to the early 1970s‚ before dying in the 1980s (1Biography.com Editors 1). His first feature film‚ in Hollywood‚ was Rebecca (1939)‚ and then he went on
Premium Alfred Hitchcock Camera Film
Background of Kentucky Fried Chicken(KFC) KFC Corporation‚ or KFC‚ founded and also known as Kentucky Fried Chicken is a chain of fast food restaurants based in Louisville‚ Kentucky. KFC primarily sells chicken pieces‚ wraps‚ salads and sandwiches. While its primary focus is fried chicken‚ KFC also offers a line of roasted chicken products‚ side dishes and desserts. Outside North America‚ KFC offers beef based products such as hamburgers or kebabs‚ pork based products such as ribs and other regional
Premium KFC
Contributions and Drawbacks of Marxism Marxism is a theoretical system that created by Marx and Engels based on labor movements in the 19th century. Marxism was written upon a materialist interpretation of history. The Marxist theoretical system consists of three parts: Marxist philosophy‚ Marxist political economy and scientific socialism‚ which were created on the basis of the German classical philosophy‚ the British classical political economy and French utopian socialist influence respectively
Premium Socialism Communism Capitalism
Elliott Carter is among the most celebrated American composers of the 20th century. Until his death in 2012‚ Carter was a renowned ace in composing contemporary classical music. His success during his career spanning eight decades can well be manifested by the numerous accolades he gained including the most coveted Pulitzer Prize. Elliot Cook Carter‚ Jr. was born in New York City in 1908 and died in 2012. His interest in music began while he was in high school. Carter’s music career was instigated
Premium Music New York City Poetry