Addition polymerization is an exothermic process. Energy comes from bond breakage and reformation. Please calculate the energy released during polymerization of 400 kg of polyvinyl chloride:

The bond energies for relevant bonds are shown below to help solve the problem:

C-C: 88 kcal/mol

C=C: 162 kcal/mol

C-H: 104 kcal/mol

C-Cl: 81 kcal/mol