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A mixture of 2 moles of helium gas (atomic mass = 4 u), and 1 mole of argon gas (atomic mass = 40 u) is kept at 300 K in a container. The ratio of their rms speeds `[(V_(rms)"(helium)")/(V_(rms)"(argon)")]`, is close to :

A

2.24

B

0.45

C

0.32

D

3.16

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The correct Answer is:
D
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