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The rms speed of oxygen molecules in a g...

The rms speed of oxygen molecules in a gas is `v`. If the temperature is doubled and the oxygen molecules dissociate into oxygen atoms, the rms speed will become

A

`v`

B

`vsqrt(2)`

C

`2 v`

D

`4 v`

Text Solution

Verified by Experts

The correct Answer is:
C
`v_(rms) = v = sqrt((3 RT)/(M_(0)))`
`v'_(rms) = sqrt((3 R.2)/(M_(0)//2)) = 2sqrt((3 RT)/(M_(0))) = 2v`
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CP SINGH-KINETIC THEORY OF GASES-Exercises
  1. The temperature at which the rms speed of air molecules is double of t...

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  2. The curve between absolute temperature and v(rms)^(2) is

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  3. The rms speed of oxygen molecules in a gas is v. If the temperature is...

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  19. Which of the following quantities is zero on an average for the molec...

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

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