ORGANIC CHEMISTRY Chapter 10 Chain Initiation 2Cl·△H°=+243kJ/mol DH°=243 Chain Propagation CH3-H+Cl→CH3+HCl△H°=+4kJ/mol DH°=435 DH°=431 CH3+Cl2—CH3C1+Cl·△H°=106kJ/mol DH°=243DH=349 Chain Termination △H°=102 kJ/mol CH.+ Cl CHCI DH°=349 CH2 +CH CHCH DH°=368 Cl·+Cl Cl DH°=243 Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 10 hv Cl2 2Cl ∆H° = + 243 kJ/mol DH°= 243 Chain Initiation CH3 ＋ HCl CH3 ＋ Cl2 CH3Cl ＋ Cl ∆H° = 106 kJ/mol DH°= 435 CH3 H ＋ Cl DH°= 431 DH°= 243 DH°= 349 ∆H° = + 4 kJ/mol Chain Propagation Cl ＋ Cl CH3 ＋ CH3 CH3 ＋ Cl Cl2 CH3CH3 CH3Cl Chain Termination DH°= 349 DH°= 368 DH°= 243 ∆H° = 102 kJ/mol