Question

water as ice has cooling effect , whereas water as steam may cause severe burns. explain these observations.

Answer 1

it is because of latent heat of vaporisation. steam is formed from boiling water it contains the latent heat ,along with latent heat of vaporisation.it has more heat energy so it can cause severe burns.
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Answer 2

Water as ice has a cooling effect whereas water as steam may cause severe burns. ... Whereas, when temperature is increased to 100oC, water is converted to steam. Water as steam has more latent heat than water in liquid and solid form. Hence, water as steam can cause severe burns while water as ice has a cooling effect.

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