Overall reaction H + C—H H iC: Cl+ photon(hv) Cl +: Cl +:Cl HC·+H-Cl H ClCl HC-Cl+Cl· H H—C-H+C-Cl—>H-C-C1+H-Cl= H Chapter 4Chapter 4 8 Overall Reaction C H H H H + Cl C H H H + H Cl C H H H + Cl Cl C H H H Cl + Cl C H H H H + Cl Cl C H H H Cl + H Cl => Cl Cl + photon (h) Cl + Cl