WHY DO OUR PALM FEEL COLD IF WE PUT SOME ACETONE OR PERFUME ON IT.?????
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because of evaporation ...heat generated by that part of hand which is in contact with acetone or perfume helps acetone or perfume to evaporate and hence r palm feel cold
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bcz of evaporation the acetone or perfume take heat from our hand nd transfered into gas nd so our hand feel cool
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