The overall order of the reactants in this rate law : 2
Further explanation
Given
Reaction
2O3 → 302
The rate law :
R= k[03]²
Required
The overall order
Solution
The overall order : the sum of orders for each reactant
For A + B ---> C + D
r = k [A]ᵃ[B]ᵇ
The overall reaction order is m+n
So for the rate law of R= k[03]², the overall order = 2