DeltaH` (vap) for water is `40.7 kJ mol^( 1)`. The entropy of vapourisation of water is vp vs temp.svg Delta Vap H Latent Heat of Vaporization Delta Hvap of Water calculated by corresponding states correlation Calculate the enthalpy change for the process CCl4(g) gives C(g) plus 4 Cl(g) and calculate bond enthalpy of C Cl in CCl4(g). Law of Equipartition of Energy Energy is equally distributed among all degrees of freedom Each degree contributes kT per molecule Translational, rotational,