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
any of the instructions.
Hello, I am a doctor at Mayo Clinic – Rochester in Rochester, MN. I am here to provide you with a specific answer to your question about the enthalpy of vaporization. The enthalpy of vaporization is the amount of energy that must be added to a liquid substance to convert it into a gas or vapor. This energy is usually measured in joules per mole (J/mol).