One Question per Day ---------- Multiple-choice Questions on Basic Process Knowledge (November 1)
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You receive a wealth reward just for participating. Multiple-choice question: When a gas of constant mass expands its volume to 10 times its original size at a constant temperature, which of the following situations will occur? ( ) A. The number of gas molecules increases by 10 times. B. The magnitude of the average velocity of the gas molecules decreases by 10 times. C. The average force exerted by the gas molecules on the container walls is reduced to 1/10 of its original value. D. The density of the gas molecules remains unchanged
B. The magnitude of the average speed of gas molecules decreases by a factor of 10
C. The average force exerted by gas molecules on the container wall is reduced to 1/10 of its original value
When a fixed mass of gas expands its volume to 10 times its original size at a constant temperature, which of the following will occur (C)? A. The number of gas molecules increases by 10 times. B. The magnitude of the average velocity of the gas molecules decreases by 10 times. C. The average force exerted by the gas molecules on the container walls is reduced to 1/10 of its original value. D. The density of the gas molecules remains unchanged