Question

Heat of vaporisation is the heat energy required to change
i) 1 kg of a liquid to gas at atmospheric pressure below its boiling point
ii)1 kg of a liquid to gas at atmospheric pressure at its boiling point
iii)1 kg of a liquid to gas at any pressure and temperature
iv)1 kg of a liquid to gas at vapour pressure and absolute temperature​

Answer 1

Answer:

3rd option is correct please mark me as brain list