5 gram Delta 8 Disposable THC HHC Vape Pen with Preheat 4asvapes Vaping Products Delta Vap H Latent Heat of Vaporization Delta Hvap of Water calculated by corresponding states correlation in a one cell excel formula A) b) ln((p2) (p1)) = ( Hvap) (R)((1) (T1) ( If \Delta {H}{vap }^{\circ} for {H}{2} {O} is 44 {kJ} {mol}^{ 1}, then amount of heat required to evaporate 9 {~g} of {H}_{2} {O} is : Finding Delta H using ln P vs 1 T (Hvap Lab)