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KineticsMCQ

The reaction; 2NO(g) + 2H2(g) → 2H2O(g) + N2(g) obeys the rate equation Rate = k[NO]2[H2]. This mechKinetics Chemistry Question

Question

The reaction; 2NO(g) + 2H2(g) → 2H2O(g) + N2(g) obeys the rate equation Rate = k[NO]2[H2]. This mechanism has been proposed:
1. 2NO(g) → N2O2(g)
2. N2O2(g) + H2(g) → 2HON(g)
3. HON(g) + H2(g) → H2O(g) + HN(g)
4. HN(g) + HON(g) → N2(g) + H2O(g)
Which step of the mechanism is the rate-determining step?

A.

step 1

B.

step 2

✓ Correct
C.

step 3

D.

step 4

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