Question

E) Would you expect the temperature of the water to continue rising above 20°C? Explain your answer.​

Answer 1

No, when water converts to steam on heating, the temperature remains constant at the boiling point and the heat supplied to the water is used for the vaporisation of water, rather than increasing the temperature of water.

This energy used for the vaporisation is termed as the latent heat of vaporisation.

You’ll find similar observations if you try heating ice - the temperature remains at 0∘ Celsius. Here, it’s the latent heat of fusion.