Chapter 14, Problem 14.119SP

Forward and reverse rate constants for the reaction ${\text{CO}}_{\text{2}}\left(g\right)+{\text{N}}_{\text{2}}\left(g\right)\rightleftharpoons \text{CO}\left(g\right)+{\text{N}}_{\text{2}}\text{O}\left(g\right)$ exhibit the following temperature dependence:

Temperature (K)	kf(M-1s-1)	Kr(M-1s-1)
1200	9.1 × 10-11	1.5 × 105
1300	2.7 × 10-9	2.6 × 105

Is the reaction endothermic or exothermic? Explain in terms of kinetics.