Problem Set 10 - Chem 215, Fall 2007 Problem Set 10 Due...

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Chem 215, Fall 2007 Problem Set 10 Due Fri. Nov 16 at 2:00PM Name: _________________________ Undergrad TA: ____________________ Lab Day: __________ Suggested Additional Problems: Ch 15: 57, 65, 79, 90, 94; Ch 16: 15, 17, 21, 39, 43, 91, 92 1. The ozone in the earth’s ozone layer decomposes according to the equation: 2O 3 (g) 3O 2 (g). You postulate that the mechanism proceeds through an initial fast equilibrium, followed by a slow step: ) g ( O ) g ( O ) g ( O 2 k k 3 1 1 + Fast equilibrium ) g ( O 2 O(g) ) g ( O 2 k 3 2 + Slow a) Assuming this mechanism, derive the rate law expression for the decomposition of ozone. b) What is the order of the reaction with respect to each species that appears in the rate law expression? c) What is the overall order of the reaction?
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2 d) A friend agrees with the above reaction mechanism, but is skeptical that the equilibrium is fast and the second step is slow. Apply the steady state approximation to the appropriate reaction intermediate(s) in order to determine the general rate law expression for the decomposition of
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Problem Set 10 - Chem 215, Fall 2007 Problem Set 10 Due...

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