Delta Vap H Latent Heat of Vaporization Delta Hvap of Water calculated by corresponding states correlation Heat of Vaporization: Clausius Clapeyron Enthalpy Standard Enthalpy of Formation, \(\Delta H_{\rm f}^\circ \) Calculated and Experimental Enthalpies vap H and vap H exp of Download Table 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).