Example: Oxidation of carbon monoxide CO oH +o> CO, +HO HO+NO→>NO2+OH no t hy>NO +o Q+Q2+M→Q3+M Net: co+20+hv>CO+o The net reaction can be viewed as a catalytic oxidation of Co to co. Net formation of o, occursExample: Oxidation of carbon monoxide CO + .OH + O2 → CO2 + HO2 . HO2 . + NO → NO2 + .OH NO2 + hv → NO + O O + O2 + M → O3 + M Net: CO + 2 O2 + hv → CO2 + O3 The net reaction can be viewed as a catalytic oxidation of CO to CO2 . Net formation of O3 occurs