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Some moles of O(2) diffuse through a sma...

Some moles of `O_(2)` diffuse through a small opening in 18 second. Same number of moles of an unknown gas diffuse through the same opening in 45 second. Molecular mass of the unknown gas is

A

`32 xx ((45)^(2))/((18)^(2))`

B

`32 xx ((18)^(2))/((45)^(2))`

C

`(32)^(2) xx (45)/(18)`

D

`(32)^(2) xx (18)/(45)`

Text Solution

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The correct Answer is:
A
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OP TANDON-STATES OF MATTER (GASES AND LIQUIDS)-Objective questions
  1. The rate of diffusion of hydrogen is about:

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  2. The rate of diffusion of methane at a given temperature is twice that ...

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  3. Some moles of O(2) diffuse through a small opening in 18 second. Same ...

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  4. The critical temperature of a gas is that temperature:

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  5. The van der Waals' equation for a real gas is:

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  6. Non-ideal gases approach ideal behaviour at:

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  7. A 5 litre flask containing 1.0g of hydrogen is heated from 300 K to 60...

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  8. Association of molecules in water is due to:

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  9. Which of the following statements is wrong ?

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  10. Which one of the following is the wrong statement about the liquid ?

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  11. Water boils at lower temperature on high altitude because:

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  12. When a student was given a viscometer, the liquid was sucked with diff...

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  13. Mark the statement which is correct:

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  14. With the increasing molecular mass of a liquid the velocity:

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  15. The viscosity of which of the following liquid is the maximum.

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  16. The rise of a liquid in a capillary tube is due to :

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  17. If eta(1) and eta(2) are the coefficients of viscosity of two liquids,...

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  18. The rms speed of hydrogen molecules at room temperature is 2400 ms^(-1...

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  19. The molecules of which of the following gas have highest speed ?

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  20. Consider a mixture of oxygen and hydrogen kept at room temperature, As...

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