Question

Standard enthalpy of vaporization for water at 100 c

Answer 1

The standard enthalpy of vaporization of water at 100°C is 40.667 kJ/mol. The heat capacity of liquid water is 75.3 J/(mol.K) averaged over most of the liquid range; the constant pressure molar heat capacity of water vapor is 104.5 J/(mol.K) averaged over that same range. Calculate the enthalpy, entropy and free energy of vaporization of water at 25°C and 1 bar pressure.