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Evaporation of a liquid occurs at
(a) boiling point
(b) a fixed temperature
(c) temperature lower than boiling point
(d) all temperatures
Correct answer: (c) temperature lower than the boiling point
Explanation: Evaporation can take place at a temperature below the boiling point since the molecules in the liquid have different energies. As the molecules in a liquid collide, some achieve higher energies which allow them to escape.
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