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 $\frac{v_{\text{rms (helium)}}}{v_{\text{rms (argon)}}}$ is close to
A
2.24
B
0.32
C
0.45
D
3.16

Question

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 $\frac{v_{\text{rms (helium)}}}{v_{\text{rms (argon)}}}$ is close to

A

2.24

B

0.32

C

0.45

D

3.16

Accepted Answer

3.16

Answer

2.24

Answer

0.32

Answer

0.45

STANDARD Physics Root Mean Square Speed MCQ Question

Correct Answer

Detailed Explanation

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