Consider the reaction NO + O3 → NO2 + O2 Which has a rate constant given by k = 1.8×10-12 e-1370/T cm3 molecules-1 s-1 .Use the following standard heats of formation. Substance ΔH0f (kJ mol-1) NO 90.25 ,NO2 33.18 , O3 142.7 ,O2 0 What is the activation energy of this reaction?