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A mixture of hydrogen and helium is prep...

A mixture of hydrogen and helium is prepared in such a way that the number of collisions on the wall per unit time by molecules of each gas is same. The gas which has higher concentration is

A

hydrogen

B

helium

C

both have same concentration

D

it cannot be determined

Text Solution

Verified by Experts

The correct Answer is:
B
`H_(2)` has higher velocity than He.If they are in 1:1 mole ratio,`H_(2)` exert more collisions on the wall.So, He has more concentration.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-STATES OF MATTER-Exercise 2 (Miscellaneous Problems)
  1. A mixture of hydrogen and helium is prepared in such a way that the nu...

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  2. A helium atom is two times heavier than a hydrogen molecule. At 298 K,...

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  3. As the temperature is raised from 20^(@)C to 40^(@)C the averge kineti...

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  4. The compressibility of a gas is less than unity at STP, therefore,

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  5. 3.2 g of S is heated to occupy a volume of 780 ml at 450^(@)C and 723 ...

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  6. If density of a certain gas at 30^(@)C and 768 Torr is 1.35kg//m^(3), ...

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  7. The density of phosphorus vapour at STP is 5.54 " gL"^(-1). Hence, mol...

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  8. The intermolecular interaction that is dependent on the inverse cube o...

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  9. If Z is a compressibility factor, van der Waals' equation at low press...

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  10. The compressibility factor of gases is less than unity at STP. Therefo...

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  11. For the non-zero volume of the molecules, real gas equation for n mol ...

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  12. A 34.0 L cylinder contains 212" g"O(2) gas 27^(@)C. What mass of O(2)...

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  13. At 298 k, which of the following gases has the lowest average molecula...

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  14. Select the correct statements.

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  15. Which of the following gases follows non-ideal behaviour?

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  16. To liquefy gaseous substances whose critical temperatures are below ro...

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  17. NH(3) gas is liquefied more easily than N(2). Hence

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  18. A gas at a pressure of 5.0 atm is heated from 0^(@)C to 546^(@)C and s...

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  19. At 400 K, the root mean square (rms) speed of a gas X (molecular weigh...

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  20. Which assumption of kinetic molecular theory is not followed when a re...

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  21. A 100 mL flask contained H(2) at 200 Torr, and a 200 mL flask containe...

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