The enthalpy of vaporization is often quoted for the normal boiling temperature of the substance. Source Wikipedia
The enthalpy of vaporization is a function of the pressure at which that transformation takes place. Source Wikipedia
The enthalpy of vaporization (symbol ∆Hvap), also known as the (latent) heat of vaporization or heat of evaporation, is the amount of energy (enthalpy) that must be added to a liquid substance to transform a quantity of that substance into a gas. Source Wikipedia
The volumetric heat capacity can also be expressed as the specific heat capacity (heat capacity per unit of mass, in J/K/kg) times the density of the substance (in kg/L, or g/mL). Source Wikipedia
The SI unit of volumetric heat capacity is joule per kelvin per cubic meter, J/K/m3 or J/(K·m3). Source Wikipedia
Informally, it is the amount of energy that must be added, in the form of heat, to one unit of volume of the material in order to cause an increase of one unit in its temperature. Source Wikipedia
The volumetric heat capacity of a material is the heat capacity of a sample of the substance divided by the volume of the sample. Source Wikipedia
Isobaric volumetric heat capacity C(P,v) J⋅cm−3⋅K−1 of liquid Water at 100 °C = 4.2160 Source Wikipedia
Isobaric volumetric heat capacity C(P,v) J⋅cm−3⋅K−1 of liquid Water at 25 °C = 4.1796 Source Wikipedia