Equilibrium Essay

DATE PERFORMED: JULY 20, 2007 SPECTROPHOTOMETRIC DETERMINATION OF EQUILIBRIUM CONSTANT FOR A REACTION ABSTRACT UV-VIS spectrophotometry is one of the most widely-used methods for determining and identifying many inorganic species. During this experiment, this spectrophotometry was used to determine the equilibrium constant, Keq, of the Fe3+(aq)+SCN-(aq)↔ FeSCN2+(aq) reaction. By determining the amount of light absorbed, the concentration of the colored FeSCN2+ solution was also quantitatively

temperatures, determine the effect of temperature in solubility, and to apply Le Chatelier's Principle. We can do all this by simply titrating a certain amount of standard KMnO4, and measuring how much KMnO4 was needed to help Na2C2O4 reach chemical equilibrium at certain temperatures. In doing this, we will have fulfilled all the goals of our experiment, as well as being able to determine the Solubility of Na2C2O3 at both 20 and

Gas Equilibriums: examples of Reversible Reactions Q1. Identify the general chemical and physical characteristics of gas equilibriums as a group. Explain the forward and reverse reaction mechanisms. Use nitrogen dioxide and hydrogen iodide as examples and explain how equilibrium is reached. The general chemical characteristic of gas equilibriums is when the concentrations of reactants and products do not change with time. This is known as the state of reversible reaction. At this state, pressure

table, Gould and Lyell begin to have a heated conversation. LYELL: *Clears throat* Ah, excuse me, Mr. Gould, but for your new theory, have you been successfully able to find any support for it? GOULD: Why, yes, of course Mr. Lyell. The punctuated equilibrium theory has had much more support than the gradualism in the fossil record. LYELL: Oh, really? If you would so kindly elaborate on this, it would be much appreciated. GOULD: Certainly, Mr. Lyell. Well, I have found several specimens at one stage

Using your own words, explain why mainstream economists believe a free market tends towards the equilibrium position. Make comments about the contributions of Jevons and Marshall to our understanding of the market mechanism. Use as your main references Sheehan (2010) and Heilbroner (1997). A free market is a system where there is no government intervention in the business activities. A capitalist economy is best known for its free market mechanism where the participants are profit oriented. In a

are balanced, or equal to zero, that object is said to be in equilibrium. In the formula ΣF = ma, the net force, ΣF, and the acceleration, a, are equal to zero when an object is in equilibrium. Newton’s first law, also known as the law of inertia, is associated with equilibrium. It states that when there is no net force acting on an object, then if it is at rest, it will stay at rest, and if it is motion it will remain in motion. Equilibrium is divided into two types: dynamic and static. Dynamic is

Vol. 55, No. 4, April 2009, pp. 619–634 issn 0025-1909 eissn 1526-5501 09 5504 0619 MANAGEMENT SCIENCE informs ® doi 10.1287/mnsc.1080.0946 © 2009 INFORMS Competition in Service Industries with Segmented Markets Gad Allon Kellogg School of Management, Northwestern University, Evanston, Illinois 60208, g-allon@kellogg.northwestern.edu Awi Federgruen Columbia Business School, Columbia University, New York, New York 10027, af7@columbia.edu W e develop a model for the competitive

Given that equilibrium prices and profits of two retailers are known, consumers’ bias and the influence of the dealer costs on retailers’ pricing and profit condition will be discussed in four contexts: When a + b < 1 and c1 < c2, that is, consumers may like shopping in MCRs retail stores while costs of MCRs retailers are higher than that of Dotcoms retailers, MCRs retailers now have priority from aspects of consumers’ preference, and Dotcoms retailers are superior to MCRs in term of costs. a +

utopia. Each and every animal on the farm is regarded to be equal. There was no more human tyranny, but instead a communal and democratic society where one animal had just as much social influence as the next. Libria, depicted in Kurt Wimmer’s film, Equilibrium, is yet another example of the elimination of a hierarchy. People dressed in the same clothes, lived in the same houses, and felt the same things. There was no variation, just a single class: human. This seems simple, but how could this ever be

were able to have a better understanding of the three phases being in equilibrium with each other. In its natural state, carbon dioxide exists as a solid. In order to exist as a liquid, the pressure required to make this phase change must be at minimum 5.11 atm. Once the solid carbon dioxide melts, the triple point is achieved through the energy that was absorbed. This point demonstrates that the three phases are now in equilibrium with one another. This experiment allowed us to determine that both