Definitions for "Latent heat of vaporization"
Keywords:  vapor, heat, liquid, absorbed, quantity
See heat of vaporization.
The amount of heat energy required from the environment to change the state of a liquid to a gas. For one gram of water, the amount of heat energy required is 540 calories at a temperature of 100° Celsius.
the quantity of heat energy released when 1 kg of a substance changes from liquid to vapor without changing temperature.