WHY DO OUR PALM FEEL COLD IF WE PUT SOME ACETONE OR PERFUME ON IT.?????
Hi,
Acetone and perfume take up the heat energy from the palm to vaporize as it requires latent heat vaporisation to change from liquid state to vapour state. The hand loses heat and gets cooled. Thus the temperature of our palm is lowered which causes a cooling sensation.This is the example of cooling by evaporation.
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