InterviewSolution
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InterviewSolution
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By how much will the mean free path of a gas molecule is a vessel at constant `P` change if the temperature is reduced by `20%`?A. `12.5%` decreaseB. `12.5%` increaseC. `80%` decreaseD. `80%` increase |
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Answer» `lambda prop (T)/(P)`, i.e., `(lambda_(1))/(T_(1))=(lambda_(2))/(T_(2))` (at constant pressure) If temperature is reduced, `lambda` will decrease. `(lambda_(2))/(lambda_(1))=(T_(2))/(T_(1))=(0.8T_(1))/(T_(1))=0.8` i.e., `80%` decrease |
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