hand06 - Chemistry 008 Mrs Harriet Smithline Chapter 14...

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Chemistry 008 Handout #6 Mrs. Harriet Smithline Spring 2005 Chapter 14 Review Guide Lectures 2/15 and 2/17/05 Kinetics:Mechanisms and Rates of Reaction I. Rate Laws, Reaction Order, and Experimental Determination of a Rate Law - A. The differential form of the rate law (usually just called the rate law) relates reaction rate to a rate constant and the concentrations of reactants. For the general reaction aA + bB + … products Relative rates = - 1 [A] = - [B] = …. The differential rate law is: rate = k[A] α [B] β …… a tb t where k is the rate constant, and α , β and … are found experimentally. The intent is to show that they are different exponents and are not the same as the coefficients of the balanced reaction. Note that for a given reaction, the rate constant, k, changes only with the temperature. The units of k depend on the order of the reaction. To determine the values of α , β and … , consider the power to which the change in concentrations must be raised in order to obtain the rate change. These
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This note was uploaded on 04/23/2008 for the course CHEM 2080 taught by Professor Davis,f during the Spring '07 term at Cornell.

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hand06 - Chemistry 008 Mrs Harriet Smithline Chapter 14...

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