Water Enthalpy and Entropy vs. Temperature Heat of Vaporization Example Problem Video answer for \Delta_{\text {vap }} \mathrm{H}^{\Theta} for water is +40.79 \mathrm{kJ} \mathrm{mol}^{ 1} at 1 bar and 100^{\circ} \mathrm{C}. Change in internal energy for this vapourisation under Specific Heat Capacity of Water: Temperature Dependent Data and Calculator Video: Phase Transitions: Vaporization and Condensation Delta H^0 vap of water is +40.79 kJ mol at 1 bar and 100 deg C. Change in internal energy for this__