NEET Physics Kinetic Interpretation of Temperature MCQ Question
Consider a diagram showing two gas containers at the same temperature, one containing nitrogen molecules and the other containing helium molecules. Which of the following correctly compares the root mean square (rms) speeds of the molecules in the two containers?
The rms speed of helium molecules is greater than that of nitrogen molecules.
The rms speed of nitrogen molecules is greater than that of helium molecules.
The rms speeds of nitrogen and helium molecules are equal.
The rms speed of helium molecules is less than that of nitrogen molecules.
Correct Answer
Detailed Explanation
At the same temperature, lighter molecules like helium have greater rms speeds compared to heavier molecules like nitrogen, as indicated by the equation v_rms = sqrt(3k_BT/m).
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