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The troposphere is an oxidizing environment, and ⚫OH radical is the principle oxidizer in the troposphere. ⚫OH can remove CO from the atmosphere via a three-step chemical reaction shown below. •OH + CO → HOCO HOCO• + O2 → CO2+HOO• HOO⚫ + CO → CO₂+ ⚫OH (1) (2) (3)

The troposphere is an oxidizing environment, and ⚫OH radical is the principle oxidizer in the troposphere. ⚫OH can remove CO from the atmosphere via a three-step chemical reaction shown below. •OH + CO → HOCO HOCO• + O2 → CO2+HOO• HOO⚫ + CO → CO₂+ ⚫OH (1) (2) (3)

Chemistry In Focus
Chemistry In Focus
7th Edition
ISBN:9781337399692
Author:Tro, Nivaldo J.
Publisher:Tro, Nivaldo J.
Chapter11: The Air Around Us
Section: Chapter Questions
Problem 36E
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In the absence of a catalyst, the rate constant for the overall reaction is on the order of k(298 K) ~ 10–26 M–1. The catalyzed reaction has a rate constant on the order of k(298 K) ~ 107 M–1 (step 1 is the rate determining step).

 

Would you expect CO to be significantly oxidized in the absence of a catalyst? Is the uncatalyzed process thermodynamically limited, or kinetically limited? Explain your answer.

The troposphere is an oxidizing environment, and ⚫OH radical is the principle oxidizer in the troposphere. ⚫OH can remove CO from the atmosphere via a three-step chemical reaction shown below. •OH + CO → HOCO HOCO• + O2 → CO2+HOO• HOO⚫ + CO → CO₂+ ⚫OH (1) (2) (3)
Transcribed Image Text:The troposphere is an oxidizing environment, and ⚫OH radical is the principle oxidizer in the troposphere. ⚫OH can remove CO from the atmosphere via a three-step chemical reaction shown below. •OH + CO → HOCO HOCO• + O2 → CO2+HOO• HOO⚫ + CO → CO₂+ ⚫OH (1) (2) (3)
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