specific latent heat of water is
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Answer:
The heat of vaporization of water is about 2,260 kJ/kg, which is equal to 40.8 kJ/mol. The vaporization is the opposite process of condensation. The heat of condensation is defined as the heat released when one mole of the substance condenses at its boiling point under standard pressure.
Explanation:
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Answer:
Latent heat of water is the energy required to change its state, also called its phase, without changing its temperature. The latent heat of fusion is the energy required to change a defined quantity of ice at 0 deg C from a solid to a liquid at the same temperature. Latent heat of evaporation is the energy required to change the same quantity of water from a liquid to a vapour at 100 deg C at atmospheric pressure. Note that these state changes also work in reverse; removing the latent heat of fusion from water at 0 deg C will freeze it, and condensing steam back to water will release the latent heat that created the steam in the first place.
If you take a gram of water, it takes one calorie to increase its temp. by 1 degree C, but at its boiling point of 100 deg. C it takes much more energy to turn it into 1 gram of steam at 100 deg. C, in fact it takes 533 calories to achieve this. This is the reason why steam can cause terrible burns; once on your skin, it gives up this latent heat as it condenses back to water and can scald you badly.
Similarly, it takes 80 calories to turn a gram of ice at 0 deg C into a gram of water at the same temp, or the removal (say by refrigeration) of 80 cal /gram to turn water into ice at the same temp