Question

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. Explain.

Answer 1

the steam has more heat than water because when water converts to steam , the latent heat of vaporisation is used un interchange of state. the heat resides with steam and thus steam has more heat and can give severe burns.


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Answer 2

because latent heat of vaporisation is more in steam than in water