Question

Consider the following reaction,
$2H_2(g) + 2NO(g) \rightarrow N_2(g) + 2H_2O(g)$
which follows the mechanism given below:
$2NO(g)\underset{k_{-1}}{\stackrel{k_1}{\rightleftharpoons}} N_2O_2(g)$ (fast equilibrium)
$N_2O_2(g)+H_2(g) \xrightarrow[]{K_2}N_2O(g)+H_2O$ (slow reaction)
$N_2O(g)+H_2(g) \xrightarrow[]{K_3}N_2(g)+H_2O$ (fast reaction)
The order of the reaction is________

Answer 1

The correct answer is: 3