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A mixture of 2 moles of helium gas ((ato...

A mixture of 2 moles of helium gas (`(atomic mass)=4a.m.u`) and 1 mole of argon gas (`(atomic mass)=40a.m.u`) is kept at 300K in a container. The ratio of the rms speeds `((v_(rms)(helium))/((v_(rms)(argon))` is

A

`0.32`

B

`0.45`

C

`2.24`

D

`3.16`

Text Solution

Verified by Experts

The correct Answer is:
D
`((v_(rms))_(He))/((v_(rms))_(Ar)) = sqrt(((M_(0))_(Ar))/((M_(0))_(He)))=sqrt(40/4)=sqrt(10)=3.16`
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  2. The rms speed of oxygen molecules in a gas is v. If the temperature is...

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  3. A mixture of 2 moles of helium gas ((atomic mass)=4a.m.u) and 1 mole o...

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  4. For gas at a temperature T the root-mean-square speed v(rms), the most...

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  5. The root mean square velocity of hydrogen molecules at 300 K is 1930 m...

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  6. The root mean square velocity of the molecules in a sample of helium i...

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  7. At what temperature is the root mean square velocity of gaseous hydrog...

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  8. The molecules of a given mass of gas have a rms velocity of 200 m//sec...

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  9. A cubical box with porous walls containing an equal number of O(2) and...

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  10. Two vessels have equal volums. One of them contains hydrogen at one at...

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  11. The remperature at which the rms speed of hydrogen molecules is equal ...

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  12. Suppose a container is evacuated to leave just one molecule of a gas i...

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  13. Three closed vessels A, B and C are at the same temperature T and cont...

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  14. Let barv,v(rms) and vp respectively denote the mean speed. Root mean s...

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  15. The average momentum of a molecule in a sample of an ideal gas depends...

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  16. Keeping the number of moles, volume and temperature the same, which of...

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  17. At 0 K, which of the following properties of a gas will be zero ?

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  19. Which of the following parameters is the same for molecules of all gas...

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  20. Oxygen and hydrogen are at the same temperature T. What is the ratio o...

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