Use the molar bond enthalpy data in the table to estimate the value of change in H rxn for the equation: CCl4(g) + 2F2(g) yields CF4(g)+ 2Cl2(g). Average Molar bond enthalpies: (C-Cl) = 331kJ/mol; (F-F) =155 kJ/mol; (C-F)= 439 kJ/mol; (Cl-Cl)= 243kJ/mol.