Multiple Choice
A possible mechanism for the gas phase reaction of NO and H2 is as follows:
Step 1
2NO ![A possible mechanism for the gas phase reaction of NO and H<sub>2</sub> is as follows: Step 1 2NO N<sub>2</sub>O<sub>2</sub> Step 2 N<sub>2</sub>O<sub>2</sub> + H<sub>2</sub> N<sub>2</sub>O + H<sub>2</sub>O Step 3 N<sub>2</sub>O + H<sub>2</sub> N<sub>2</sub> + H<sub>2</sub>O Which of the following statements concerning this mechanism is not directly supported by the information provided? A) Step 1 is the rate determining step. B) N<sub>2</sub>O<sub>2</sub> is an intermediate. C) There is no catalyst in this reaction. D) The rate expression for step 1 is rate = k[NO]<sup>2</sup>. E) All steps are bimolecular reactions.](https://d2lvgg3v3hfg70.cloudfront.net/TB2288/11ea7a3a_9f0e_564c_a82d_4b4d9e353ea9_TB2288_11.jpg)
N2O2
Step 2
N2O2 + H2 ![A possible mechanism for the gas phase reaction of NO and H<sub>2</sub> is as follows: Step 1 2NO N<sub>2</sub>O<sub>2</sub> Step 2 N<sub>2</sub>O<sub>2</sub> + H<sub>2</sub> N<sub>2</sub>O + H<sub>2</sub>O Step 3 N<sub>2</sub>O + H<sub>2</sub> N<sub>2</sub> + H<sub>2</sub>O Which of the following statements concerning this mechanism is not directly supported by the information provided? A) Step 1 is the rate determining step. B) N<sub>2</sub>O<sub>2</sub> is an intermediate. C) There is no catalyst in this reaction. D) The rate expression for step 1 is rate = k[NO]<sup>2</sup>. E) All steps are bimolecular reactions.](https://d2lvgg3v3hfg70.cloudfront.net/TB2288/11ea7a3a_9f0e_564d_a82d_ffa763e87156_TB2288_11.jpg)
N2O + H2O
Step 3
N2O + H2 ![A possible mechanism for the gas phase reaction of NO and H<sub>2</sub> is as follows: Step 1 2NO N<sub>2</sub>O<sub>2</sub> Step 2 N<sub>2</sub>O<sub>2</sub> + H<sub>2</sub> N<sub>2</sub>O + H<sub>2</sub>O Step 3 N<sub>2</sub>O + H<sub>2</sub> N<sub>2</sub> + H<sub>2</sub>O Which of the following statements concerning this mechanism is not directly supported by the information provided? A) Step 1 is the rate determining step. B) N<sub>2</sub>O<sub>2</sub> is an intermediate. C) There is no catalyst in this reaction. D) The rate expression for step 1 is rate = k[NO]<sup>2</sup>. E) All steps are bimolecular reactions.](https://d2lvgg3v3hfg70.cloudfront.net/TB2288/11ea7a3a_9f0e_7d5e_a82d_fb4d57e1e20d_TB2288_11.jpg)
N2 + H2O
Which of the following statements concerning this mechanism is not directly supported by the information provided?
A) Step 1 is the rate determining step.
B) N2O2 is an intermediate.
C) There is no catalyst in this reaction.
D) The rate expression for step 1 is rate = k[NO]2.
E) All steps are bimolecular reactions.
Correct Answer:
Verified
Correct Answer:
Verified
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