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evaporation
Conversion of liquid into vapor, without necessarily reaching the boiling point. Evaporation is used in concentrating solutions by evaporating off the solvent. As it is the fastest moving molecules that escape from the surface of the liquid during evaporation, the avergae kinetic energy of the remaining molecules is reduced, and therefore evaporation causes cooling.
Related categories
• PHYSICAL CHEMISTRY
• HEAT AND THERMODYNAMICS
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