Question

the amount of heat energy required to change one kg of a liquid completely into vapor at its boiling point is dash​

Answer 1

Answer:

The 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 vapour or gas, without any change in temperature. The latent heat of vaporization of water is 22.5×105 joules per kilogram (or 22.5×105 j/kg).

Explanation:

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Answer 2

Answer:

The heat energy required to change the state of unit mass of a substance is called latent heat. As the given liquid is of unit mass (1kg) and we have to change its state into gas, therefore heat needed will be specific latent heat of vaporisation.