Answer to Question #178566 in Physical Chemistry for Gem Oseni

Question

The reaction 2NO2(g) → 2NO(g) + O2(g) is postulated to occur via the mechanism below: 

Step 1: NO2(g) + NO2(g) → NO(g) + NO3(g); k1, slow

Step 2: NO3(g) → NO(g) + O2(g); k2, fast

What is the rate law for this reaction?

Answer 1

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

$Rate = K[NO_3]^2[O_2]$