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The reaction was studied at 25 °C and the following results were obtained: a) determine the rate law b) calculate the vale of the rate constant c) based on the rate law, which of the following mechanisms is the most likely? d) what would you expect the rate law to be for the OTHER mechanism you didnt choose

The reaction was studied at 25 °C and the following results were obtained: a) determine the rate law b) calculate the vale of the rate constant c) based on the rate law, which of the following mechanisms is the most likely? d) what would you expect the rate law to be for the OTHER mechanism you didnt choose

Chemistry for Engineering Students
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter11: Chemical Kinetics
Section: Chapter Questions
Problem 11.59PAE: Can a reaction mechanism ever be proven correct? Can it be proven incorrect?
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The reaction was studied at 25 °C and the following results were obtained:

a) determine the rate law

b) calculate the vale of the rate constant

c) based on the rate law, which of the following mechanisms is the most likely?

d) what would you expect the rate law to be for the OTHER mechanism you didnt choose.

Mechanism 1 2 NO → N₂O2 (slow) N₂O₂ → N₂ + NO₂ (fast) N₂ + 0₂ → NO₂ (fast) Mechanism 2 NO + 0₂ → NO3 (slow) NO3 + NO → N₂O4 (fast) N₂O4 → 2 NO₂ (fast)
Transcribed Image Text:Mechanism 1 2 NO → N₂O2 (slow) N₂O₂ → N₂ + NO₂ (fast) N₂ + 0₂ → NO₂ (fast) Mechanism 2 NO + 0₂ → NO3 (slow) NO3 + NO → N₂O4 (fast) N₂O4 → 2 NO₂ (fast)
[NO]o [0₂]0 0.030 M 0.060 M 0.030 M 0.030 M 0.015 M 0.015 M 0.024 M 0.030 M 2 NO(g) + O2(g) → 2 NO2(g) Initial Rate mol/L sec 1.300 x10-3 3.250 X10-4 8.125 x10-5 2.80 X10-4
Transcribed Image Text:[NO]o [0₂]0 0.030 M 0.060 M 0.030 M 0.030 M 0.015 M 0.015 M 0.024 M 0.030 M 2 NO(g) + O2(g) → 2 NO2(g) Initial Rate mol/L sec 1.300 x10-3 3.250 X10-4 8.125 x10-5 2.80 X10-4
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