NEET Physics Kinetic Interpretation of Temperature MCQ Question
A diagram shows molecules of two different gases at the same temperature. If the molecular mass of gas A is less than that of gas B, what can be said about the root mean square (rms) speed of their molecules?
Gas A has a greater rms speed than gas B.
Gas B has a greater rms speed than gas A.
Both gases have the same rms speed.
Rms speed cannot be determined from molecular mass.
Correct Answer
Detailed Explanation
At the same temperature, lighter molecules (with lower molecular mass) have greater rms speed according to the kinetic theory of gases.
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