The rxn 2NO + O2 --> 2NO2 is believed to occur by the mechanism 2NO--> N2O2 k1 N2O2-->2NO k-1 N2O2+2-->2NO2 k2 ) Assume N2O2 to be in a steady state and derive the rate equation in terms of [NO] and [O2] as well as k. b) Under what conditions does the rate equation reduce to second-order kinetics in NO and first kinetics in O2