03(9) + NO(9) NO2(g) + O2(g) Slow 9 + ) 9 NO2(9) +O(9) NO(g) + O2(9) Fast Overall reaction 03(g) + O(g) +20,(9) a. Which species is a catalyst? O NO2 ONO 003 002 b. Which species is an intermediate? ONO, ONO 002 003 c. E, for the uncatalyzed reaction 03(g) + O(g) +20,(9) is 14.0 k). E, for the same reaction when catalyzed is11.9 kJ. What is the ratio of the rate constant for the catalyzed reaction to that for the uncatalyzed reaction at 53C? Assume the frequency factor A is the same for each reaction Ratio