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

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

Answers (1)

In the process of boiling, water converts into steam by absorbing heat but without changing temperature. This heat is called latent heat of evaporation and it is possessed by vapour molecules.

Hence even water in boiling state and steam have same temperature, the energy of vapour molecules is more than water.

This is the reason, why Steam causes more burning than boiling water even they have same temperature.

Posted by

Gurleen Kaur

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