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Physics

Heat

Easy

Question

At a certain temperature, the ‘rms’ velocity for O₂ is 400 m/sec. At the same temperature, the ‘rms’ velocity for H₂ molecules will be

100 m/s
25 m/s
1600 m/s
6400 m/s

The correct answer is: 1600 m/s

$straight v subscript r m s end subscript equals square root of fraction numerator 3 R T over denominator M end fraction end root not stretchy rightwards double arrow straight v subscript r m s end subscript proportional to fraction numerator 1 over denominator square root of M end fraction$

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