Chemistry, asked by minahilshah183, 8 months ago

ii Explain why it happens that on a hot summer day when there is sweat on the body of a person, one feels cool under fast moving fan?​

Answers

Answered by SweetUnicorn07
10

Answer:

It's due to energy requirement of evaporation.

Let suppose if your tea/coffee is hot you blow it.,The reason is that air current flowing across a hot body cools partly by the temperature difference b/w air &one's body,but more so bcoz it requires a considerable amount of energy to cool a body through evaporation of sweat,which is generally water.Technically as the faster moving molecule near the surface escape,the remaining molecules have lower average kinetic energy and thus the temp. of liquid decreases.

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