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

A

3.16

B

0.32

C

0.45

D

2.24

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