(Answered)-A possible mechanism for the gas phase reaction of NO and H 2 is - (2025 Updated Original AI-Free Solution

Question

1. A possible mechanism for the gas phase reaction of NO and H₂?is as follows:

   Step 1	2NO??N2O2
   Step 2	N2O2?+ H2??N2O?+ H2O
   Step 3	N2O + H2??N2?+ H2O

   
   Which of the following statements concerning this mechanism is not directly supported by the information provided?

   Step 1 is the rate determining step.

   N2O2?is an intermediate.

   There is no catalyst in this reaction.

   The rate expression for step 1 is rate = k[NO]2.

   All steps are bimolecular reactions.