Respuesta :

124. The photochemical bromination of methane was studied in the temperature range 423–503°K and found to proceed through the following chain mechanism: (1) Br2+hν=Br+Br(2) Br+CH4=CH3+HBr(3) CH3+Br2=CH3Br+Br(4) CH3+HBr=CH4+Br(5) Br+Br+M=Br2+M.