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Question

The kinetic energy is proportional to temperature, thus evaporation:

A
proceeds slowly at higher temperatures
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B
stops
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C
proceeds quickly at higher temperatures
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D
does not occur at all
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Solution

The correct option is D proceeds quickly at higher temperatures
For molecules of a liquid to evaporate, they must be located near the surface, they have to be moving in the proper direction, and have sufficient kinetic energy to overcome liquid-phase intermolecular forces. When only a small proportion of the molecules meet these criteria, the rate of evaporation is low. Since the kinetic energy of a molecule is proportional to its temperature, evaporation proceeds more quickly at higher temperatures.

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