Question

what is the meaning of latent heat of evaporation

Answer 1

the amount of heat required to change a substance from it's liquid form to it's gaseous form at the same temperature without any change in temperature is called latent heat of evaporation

Answer 2

Latent heat of vaporization is a physical property of a substance. ... 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. The heat of vaporization of water is about 2,260 kJ/kg, which is equal to 40.8 kJ/mol.