Problem 10E
Pretend that all the molecules in a liquid have the same speed, not random speeds. Would evaporation of this liquid cause the remaining liquid to be cooled? Explain.
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Solution 10E If all the molecule in a liquid has the same velocity, then after evaporation, the speed of the remaining liquid will not change. The temperature of the liquid depends on the average kinetic energy of molecules. Now, in this case, the speed of the molecule remains same even after evaporation. Hence the average kinetic energy of the liquid will remain same. Since the average kinetic energy will not change, the temperature of the liquid will also not change. Hence, in this case, the evaporation of the liquid will not cause cooling.
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Chapter 17, Problem 10E is Solved
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