Solution: The rate constant for the decomposition of N 2O(g) is 1.1×10−3 M-1 sec-1. Assuming that the initial concentration of N2O(g) is 0.2M, which of the following statements is true? a) The reaction is zeroth order and the half life is 90.9 seconds b) The reaction is first order and the half life is 90.9 seconds c) The reaction is first order and the half life is 630 seconds d) The reaction is second order and the half life is 4545.5 seconds e) The reaction is second order and the half life is 630 seconds

Problem

The rate constant for the decomposition of N 2O(g) is 1.1×10−3 M-1 sec-1. Assuming that the initial concentration of N2O(g) is 0.2M, which of the following statements is true?

a) The reaction is zeroth order and the half life is 90.9 seconds

b) The reaction is first order and the half life is 90.9 seconds

c) The reaction is first order and the half life is 630 seconds

d) The reaction is second order and the half life is 4545.5 seconds

e) The reaction is second order and the half life is 630 seconds