The experimental rate law for the decomposition of nitrous oxide (N2O) to N2 and O2 is Rate = k[N2O]^2 .
Two mechanisms are proposed:
Mechanism I.
N2O ? N2 + O
N2O + O ? N2 + O2
Mechanism II.
2N2O ? N4O2
N4O2 ? 2N2 + O2
Which of the following would be the correct mechanism?
A. Mechanism I with the second step as the rate-determining step
B. Mechanism II with the second step as the rate-determining step
C. Mechanism I with the first step as the rate-determining step
D. Two of these could be correct.
E. None of these could be correct.
