6. Thermodynamics and Kinetics
Enthalpy
6. Thermodynamics and Kinetics Enthalpy
30PRACTICE PROBLEM
Calculate the heats of the reaction for the two possible sites for radical formation in the first propagation steps for the chlorination of 2,3-dimethylbutane. Label the reaction-coordinate diagram shown below to compare the activation energies of the two radical formations.
Bond dissociation energies: 1° C–H = 423 kJ/mol; 3° C–H = 403 kJ/mol; 1° C–Cl = 350 kJ/mol; 3° C–Cl = 355 kJ/mol
Calculate the heats of the reaction for the two possible sites for radical formation in the first propagation steps for the chlorination of 2,3-dimethylbutane. Label the reaction-coordinate diagram shown below to compare the activation energies of the two radical formations.
Bond dissociation energies: 1° C–H = 423 kJ/mol; 3° C–H = 403 kJ/mol; 1° C–Cl = 350 kJ/mol; 3° C–Cl = 355 kJ/mol