Vapour Pressure vs 1 T Delta Hvap Clausius Chegg.com A) b) ln((p2) (p1)) = ( Hvap) (R)((1) (T1) ( Vaporization enthalpy of isooctane (2,2,4 trimethylpentane). The fitted Download Scientific Diagram Heats of Vaporization and Condensation Examples, Calculations and Definitions CK 12 Foundation Chloroform has \Delta \mathrm { H } _ { \text {vaporization } } = 29.2 \m.. 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 :