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DefineLatentheatofVapouation. |
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Answer» tion:Latent heat of vaporization is a PHYSICAL property of a substance. 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. The heat of vaporization of water is about 2,260 kJ/kg, which is EQUAL to 40.8 kJ/mol. |
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