STANDARDPhysics-Kinetic Theory of Gases
STANDARD Physics Root Mean Square Velocity MCQ Question
Type: MCQ-numerical-Medium-Class 11
At what temperature is the rms velocity of hydrogen molecule equal to that of an oxygen molecule at 47°C?
A
10 K
B
20 K
C
30 K
D
40 K
Correct Answer
Option B
Detailed Explanation
The rms velocity of H₂ molecule equals the rms velocity of O₂ molecule when T = 20 K, calculated using the formula v_rms = √(3RT/M).
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