c) Two mechanisms, shown below, have been proposed for the different decomposition reactions. Mechanism A: Step 1: NO2(g) NO(g) + 0(g) Step 2: NO2(g) + 0(g) → NO(g) + 0;(g) Slow Fast Mechanism B: Step 1: NO,(g) + NO,(g) = N,0,g) Step 2: N20,(g) NO(g) + NO,(g) Step 3: NO, (g) NO(g) + 02(g) Fast Slow Fast Identify the correct mechanism for the thermal and photochemical decomposition of NO2. Justify your answer using the mechanistic steps and overall rate law.
c) Two mechanisms, shown below, have been proposed for the different decomposition reactions. Mechanism A: Step 1: NO2(g) NO(g) + 0(g) Step 2: NO2(g) + 0(g) → NO(g) + 0;(g) Slow Fast Mechanism B: Step 1: NO,(g) + NO,(g) = N,0,g) Step 2: N20,(g) NO(g) + NO,(g) Step 3: NO, (g) NO(g) + 02(g) Fast Slow Fast Identify the correct mechanism for the thermal and photochemical decomposition of NO2. Justify your answer using the mechanistic steps and overall rate law.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question c
Transcribed Image Text:c) Two mechanisms, shown below, have been proposed for the different
decomposition reactions.
Mechanism A:
Step 1: NO2(g) - NO(g) + 0(g)
Step 2: NO2(g) + 0(g) - NO(g) + 02(g)
Slow
Fast
Mechanism B:
Step 1: NO2(g) + NO2(g) = N20,(g)
Step 2: N20,(g) → NO(g) + NO,(g)
Step 3: NO3 (g) - NO(g) + 02(g)
Fast
Slow
Fast
Identify the correct mechanism for the thermal and photochemical
decomposition of NO2. Justify your answer using the mechanistic steps and
overall rate law.
d) Cars emit NO2 into the atmosphere. During the day, do you expect the majority
of the NO in the atmosphere to come from the thermal or photochemical
decomposition reaction? Explain your reasoning.
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