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 Law of Equipartition of Energy Energy is equally distributed among all degrees of freedom Each degree contributes kT per molecule Translational, rotational, Delta 8 1000mg Disposable White Widow Hemplitude Enthalpy Changes delta h Nuclear Power Standard Enthalpy of Formation, \(\Delta H_{\rm f}^\circ \)