Alka was making tea in a kettle. Suddenly she felt intense heat from the puff of stream gushing out of the spout of the kettle. She woundered whether the temperature of the stream was higher than that of the water boiling in the kettle . Comment.

Explanation

The temperature of both boiling water and steam is `100^(@)C` , but steam gives out more heat (due of latent heat of vaporisation) in comparison to boiling water.
It is because, when water changes into steam, it absorbs latent heat of vaporisation , but when steam condenses to form water, an equal amount of latent heat is given out without changing the temperature.
Hence, she felt intense heat from puff of steam gushing out of the spout of the kettle.