The reaction A2 + B2 → 2AB occurs in following steps:
A2 → A + A (slow)
A + B2 → AB + B (fast)
A + B → AB (fast)
What is the order of the reaction?
Answer & explanation
Correct answer: option 4
Slowest step of mechanism is the rate determining step.
A2 → A + A (slow)
r = k [A2]1
This is a first order reaction.