The energy supplied to convert unit mass of a liquid into gas is called latent heat of .

condensation

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fusion

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vapourisation

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Solution

The correct option is C vapourisation
The amount of heat required to convert unit mass of a liquid into its vapour state, at a constant pressure, is called latent heat of vaporization.

The term 'latent' means hidden, which is used because the temperature does not rise even on supplying heat during the process.

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