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Question
Define the term 'latent heat of vaporisation' of a liquid. What is the value of the latent heat of vaporisation of water ?
Solution
Latent heat of vaporisation of a liquid is the quantity of heat in joules required to convert 1 kilogram of the liquid at its boiling point to gas or vapour, without any change in temperature.
The latent heat of vaporisation of water is 22.5 × 105 J/kg.
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