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Name the liquid with higher vapour press...

Name the liquid with higher vapour pressure in the following pairs :
(a) Alcohol, glycerine , (b) Petrol, kerosene, (c ) mercury, water.

Text Solution

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The vapor molecules of alcohol acquire kinetic energy greater than the escape energy as a result of collisions. They, therefore, escape as vapours. Since the kinetic energy of the rest of the molecules decreses, their temperature gets lowered. As a result, the palm. becomes cold.
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