if we put a few drop of alcohol on the back of our hand ,alcohol disappears and our hand feel cold. why this happens ?
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Explanation: Alcohols have a tendency to evaporate rapidly or we can say that alcohols are volatile in nature. Hence, when back of your hand is moistened with alcohol then it actually absorbs heat from your hand, that is, endothermic reaction takes place and our hand feels cool.
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Explanation: Alcohols have a tendency to evaporate rapidly or we can say that alcohols are volatile in nature. Hence, when back of your hand is moistened with alcohol then it actually absorbs heat from your hand, that is, endothermic reaction takes place and our hand feels cool.
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