Delta Vap H Latent Heat of Vaporization Delta Hvap of Water calculated by corresponding states correlation in a one cell excel formula 3 Ways to Calculate Vapor Pressure wikiHow 5) For vaporization of water at 1 bar, \Delta H = 40.63 \mathrm {kJ} \ma.. Delta 8 THC + THCV Disposable Vapes Fern Valley Farms Delta_{vap}H^ for water is +40.49 kJ moi^ 1 at 1 bar and 100C . Change in internal energy for this vaporization under same condition is Sarthaks eConnect Largest Online Education Community