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The relation between root mean square speed ( v rms ) and most probable speed (v p ) for the molar mass M of oxygen gas molecule at the temperature of 300 K will be

1. v rms = 3 2 v p
2. v rms = 2 3 v p
3. v rms = v p
4. v rms = 3 1 v p

Correct answer: v rms = 2 3 v p

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