To calculate the enthalpy change of the polymerization reaction of ethylene, we can use the following equation:H_polymerization = H_combustion - H_releasedwhere H_polymerization is the enthalpy change of the polymerization reaction, H_combustion is the enthalpy of combustion of ethylene, and H_released is the energy released during the polymerization process.Given that the enthalpy of combustion of ethylene is -1411.1 kJ/mol and the polymerization of ethylene releases 3.4 kJ/mol, we can plug these values into the equation:H_polymerization = -1411.1 kJ/mol - 3.4 kJ/mol H_polymerization = -1414.5 kJ/molTherefore, the enthalpy change of the polymerization reaction of ethylene is -1414.5 kJ/mol.