vapor enthalpy energies kj/mol 40.66, specific heat capacities j/g degrees c s(s) 2.1, fus 6.01 enthalpy energies kj/mol 6.01 specifi heat j/g degrees c s(1) 4.2, s(g) 2.0 how much energy is needed to convert 64.0 grams of ice at 0.00 degress c to water at 80 degrees c