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Evaporation results in a ………… temperatur...

Evaporation results in a ………… temperature in the liquid.

A

higher

B

lower

C

no change

D

lower or higher

Text Solution

Verified by Experts

The correct Answer is:
B
Only the higher-energy molecules can escape from the liquid phase. The average molecular kinetic energy of the molecules remaining in the liquid state is therby lowered, resulting in a lower temperature in the liquid. The liquid would then be cooler than its surrounding , so it absorbs heat from its surroundings. The cooling of our body by evaporation of perspiration is a familiar example of the cooling of the surroundings by evaporation of a liquid . This is called cooling by evaporation.
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