NEET Physics Kinetic Interpretation of Temperature MCQ Question
Consider a diagram showing molecules of two different gases at the same temperature. If the molecular masses of the gases are M1 and M2 with M1 > M2, how should the root mean square (rms) speeds of the molecules, v_rms1 and v_rms2, be labeled on the diagram?
v_rms1 < v_rms2
v_rms1 = v_rms2
v_rms1 > v_rms2
v_rms1 is unrelated to v_rms2
Correct Answer
Detailed Explanation
According to the kinetic interpretation of temperature, at the same temperature, lighter molecules (with smaller molecular mass) have greater rms speed. Thus, v_rms1 < v_rms2 when M1 > M2.
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