Why evaporation results in coolness?
When we are in a swimming pool & surrounded with plenty of water we do not feel cool. However, when we come out & stand for a while with little water on our skin, we feel cool, why?
This is because even though water is evaporating on some scale even when you are in the pool but as you are in plenty of water you don't feel it. As far as cooling is concerned its because when you come out of swimming pool there are drops of water on your body they get heated by your body heat and sunlight ( if there is any at that time) and evaporate. As a result some energy i-e heat is taken from your body due to which one feels that coolness.
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