NEET Physics Kinetic Interpretation of Temperature MCQ Question
If the root mean square speed of nitrogen gas at a certain temperature is 516 m/s, what would be the root mean square speed of helium gas at the same temperature, given the molecular mass of nitrogen is 28 u and that of helium is 4 u?
1290 m/s
2064 m/s
1032 m/s
645 m/s
Correct Answer
Detailed Explanation
Using the relation v_rms ∝ 1/√M, where M is the molecular mass, and given the v_rms for nitrogen, the v_rms for helium can be calculated as (516 m/s) * √(28/4) = 2064 m/s.
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