Perspiration cools the body because ........

General Science (Easy) Physics

Perspiration cools the body because

Presence of water on the skin is cooling

Evaporation requires latent heat

Water has a high specific heat

Water is poor conductor of heat

Evaporation requires latent heat

It is because when we sweat, the liquid(sweat) takes up the heat equivalent to the latent heat of vapourisation from our body and hence we feel cool.

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