Consider the following chain reaction process in the production of NO and NO2, NO, NO+0 hv 0+0,+M-&_0,+M O3+M k3 NO + O,- NO, +O,. NO, +O. By using the steady-state assumption, show that the concentration of ozone, a major component of the photochemical smog, is determined by the ratio of [NO2] to [NO].