Question

heat energy is absorbed during the transformation of ice in to water and water in to vapours

Answer 1

Yes heat energy is absorbed during the transformation of ice into water and water into vapour and this hidden heat which is absorbed during transformation is called latent heat .
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Answer 2

From, Ice To water

The amount of the Heat Energy supplied at a constant temperature when Ice will change to water is called the Latent heat of Melting.

For water, Latent heat of Melting is 336 kJ/kg.

From Water to Vapor

The amount of the Heat energy required to convert the Water into water vapor at a Constant temperature is called the Latent Heat of the Vaporization.

For water, It is 2260 kJ/kg.