A mixture of 2 moles of helium gas (atomic mass = 4u), and 1 mole of a – InterviewSolution

1.	A mixture of 2 moles of helium gas (atomic mass = 4u), and 1 mole of argon gas (atomic mass = 40u) is kept at 300 K in a container. The ratio of their RMS speeds [vrms(helium)vrms(argon)] is close to:
Answer» A mixture of $2$ moles of helium gas $(atomic mass = 4u)$ , and $1$ mole of argon gas $(atomic mass = 40u)$ is kept at $300 K$ in a container. The ratio of their $R M S$ speeds $[\frac{v_{rms} (helium)}{v_{rms} (argon)}]$ is close to:

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