Describe the behavior of molecules during evaporation.
July 26, 2021
Evaporation is the process by which atoms or molecules in a liquid state (or in a solid state if a substance is sublimated) receive enough energy to enter a gaseous state. The thermal motion of a liquid molecule must be sufficient to overcome surface tension and evaporation, i.e., its kinetic energy must exceed the working function of adhesion on the surface. Therefore, evaporation occurs faster at higher temperatures at higher flow rates between gaseous and liquid phases and in liquids with lower surface tension.
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