given that:

delta H [Cl(g)]=121.3 kJ*mol^(-1)
delta H [C(g)]= 716.7 kJ*mol^(-1)
delta H [CCl(subscript 4)(g)]
=-95.7kJ*mol^(-1)
calculate the average molar bond enthalpy of the carbon-chlorine bond in a CCl(subscript 4) molecule.