4. A photochemical mechanism for chlorination of chloroform is shown as below. Equation 1 is an overall reaction for this process. CHCl3 + Cl CC14 + HCI Equation 1 I. Cl. + hy 2C1 ki Cl + CHCI - CCl2 + HCI CCI, + cik2 CCI + C1 k3 2CC13 + Cl2 2CC14 (1) Derive the steady state rate law for the production of carbon tetrachloride (CCL). (i) If la is the intensity of the light absorbed, derive the expression for the quantum yield, O(CCI)