Which change takes place when a gas in a sealed container is heated at constant volume?
Answer and explanation
Correct answer: A. The average kinetic energy of the molecules increases
Temperature measures the average kinetic energy of the molecules, so heating raises it.
Answer: The average kinetic energy of the molecules increases.
Why not the others: The number of molecules increases: the container is sealed. The molecules become larger: molecule size does not change with temperature. The average kinetic energy of the molecules decreases: heating raises it.
Answer: The average kinetic energy of the molecules increases.
Why not the others: The number of molecules increases: the container is sealed. The molecules become larger: molecule size does not change with temperature. The average kinetic energy of the molecules decreases: heating raises it.
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More Heat and Gases questions
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