JEE Advanced 2024 Chemistry question
Consider the following reaction,
2H_2(g) + 2NO(g) → N_2(g) + 2H_2O(g)
which follows the mechanism given below:
2NO(g) N_2O_2(g) (fast equlibrium)
N_2O_2(g) + H_2(g) N_2O(g) + H_2O(g) (slow reaction)
N_2O(g) + H_2(g) N_2(g) + H_2O(g) (fast reaction)
The order of the reaction is .
Answer: 3
Solution
The slow step determines the rate: rate . From the fast pre-equilibrium,
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