Question

defination of latent heat of evaporation

Answer 1

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The amount of heat energy required by a liquid to convert into its vapour state is called its latent heat of evaporation.

For example, latent heat of evaporation of water.

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Answer 2

It is defined as the heat required to change one mole of liquid at its boiling point under standard atmospheric pressure. It is expressed as kg/mol or kJ/kg. When a material in liquid state is given energy, it changes its phase from liquid to vapor; the energy absorbed in this process is called heat of vaporization (or evaporation).

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