The chlorine-catalyzed destruction of ozone in the upper atmosphere is thought to proceed by a two-step mechanism: Cl(g) + O3(g) --> ClO(g) + O2(g) (slow) ClO(g) + O(g) --> Cl(g) + O2(g) (a) If the first step of this mechanism is rate-determining (slow), choose the correct rate law for the overall process. Rate = k [Cl] [O3] Rate = k [Cl] [ClO] Rate = k [O3] [O] Rate = k [ClO] [O] Rate = k [O3]2 Rate = k [O3]2 [O] (b) Choose the correct chemical equation for the overall process. O(g) + O3(g) --> 2 O2(g) Cl(g) + O3(g) --> ClO(g) + O2(g) ClO(g) + O(g) --> Cl(g) + O2(g) (c) Identify an intermediate in the reaction. O2 Cl ClO O3 (d) Identify the catalyst in the reaction. Cl O2 ClO O3 (e) Identify a reactant in the reaction. O2 ClO Cl O3 (f) Identify a product in the reaction. O2 Cl ClO O3
The chlorine-catalyzed destruction of ozone in the upper atmosphere is thought to proceed by a two-step mechanism: Cl(g) + O3(g) --> ClO(g) + O2(g) (slow) ClO(g) + O(g) --> Cl(g) + O2(g) (a) If the first step of this mechanism is rate-determining (slow), choose the correct rate law for the overall process. Rate = k [Cl] [O3] Rate = k [Cl] [ClO] Rate = k [O3] [O] Rate = k [ClO] [O] Rate = k [O3]2 Rate = k [O3]2 [O] (b) Choose the correct chemical equation for the overall process. O(g) + O3(g) --> 2 O2(g) Cl(g) + O3(g) --> ClO(g) + O2(g) ClO(g) + O(g) --> Cl(g) + O2(g) (c) Identify an intermediate in the reaction. O2 Cl ClO O3 (d) Identify the catalyst in the reaction. Cl O2 ClO O3 (e) Identify a reactant in the reaction. O2 ClO Cl O3 (f) Identify a product in the reaction. O2 Cl ClO O3
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter11: Chemical Kinetics
Section: Chapter Questions
Problem 75E: One mechanism for the destruction of ozone in the upper atmosphere is a. Which species is a...
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29. The chlorine-catalyzed destruction of ozone in the upper atmosphere is thought to proceed by a two-step mechanism:
Cl(g) + O3(g) --> ClO(g) + O2(g) (slow)
ClO(g) + O(g) --> Cl(g) + O2(g)
ClO(g) + O(g) --> Cl(g) + O2(g)
(a) If the first step of this mechanism is rate-determining (slow), choose the correct rate law for the overall process.
Rate = k [Cl] [O3]
Rate = k [Cl] [ClO]
Rate = k [O3] [O]
Rate = k [ClO] [O]
Rate = k [O3]2
Rate = k [O3]2 [O]
(b) Choose the correct chemical equation for the overall process.
O(g) + O3(g) --> 2 O2(g)
Cl(g) + O3(g) --> ClO(g) + O2(g)
ClO(g) + O(g) --> Cl(g) + O2(g)
(c) Identify an intermediate in the reaction.
O2
Cl
ClO
O3
(d) Identify the catalyst in the reaction.
Cl
O2
ClO
O3
(e) Identify a reactant in the reaction.
O2
ClO
Cl
O3
(f) Identify a product in the reaction.
O2
Cl
ClO
O3
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