The chemical reaction `2O_(3) overset(k_(1))rarr 3O_(2)` proceeds as follows:
`O_(3) overset(k_(eq))hArr O_(2)+O` (fast)
`O + O_(3) overset(k)rarr 2O_(2)` (slow)
What should be the rate law expresison ?
A. `r = k[O_(3)]^(2)`
B. `r = k[O_(3)]^(2)[O_(2)]^(-1)`
C. `r = k[O_(3)][O_(2)]`
D. Unpredictable
