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Q.

The average translational energy and the rms speed of molecules in a sample of oxygen gas at 300K are 6.21 x 10-21 J and 484 ms-1 respectively. The corresponding values at 600K are nearly (assuming ideal gas behaviour)

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a

avg Etr = 12.42 x 10-21 J

b

avg Etr = 6.21 x 10-21 J

c

rms speed = 684 ms-1

d

rms speed = 964 ms-1

answer is B, D.

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Detailed Solution

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According to K.T.G
Vrm=3RTm

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