NEET Physics Kinetic Interpretation of Temperature MCQ Question
Which of the following statements about the kinetic interpretation of temperature is correct?
At a given temperature, lighter gas molecules have a higher root mean square speed than heavier molecules.
The average kinetic energy of gas molecules increases with decreasing temperature.
Root mean square speed is directly proportional to the molecular mass of the gas.
Temperature is independent of the average kinetic energy of molecules in a gas.
Correct Answer
Detailed Explanation
According to the kinetic theory, at the same temperature, lighter molecules indeed possess greater rms speed than heavier molecules, consistent with the average kinetic energy being equal for different gases at equilibrium.
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