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A helium atom is two times heavier than ...

A helium atom is two times heavier than a hydrogen molecule. At `298 K`, the average kinetic energy of a helium atom is

A

two times that of hydrogen molecule

B

same as that of hydrogen molecule

C

four times that of hydrogen molecule

D

half that of hydrogen molecule

Text Solution

Verified by Experts

The correct Answer is:
B
Average KE depends only on temperature and does not depends upon the nature of the gas.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-STATES OF MATTER-Exercise 2 (Miscellaneous Problems)
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  5. If density of a certain gas at 30^(@)C and 768 Torr is 1.35kg//m^(3), ...

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

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

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

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

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

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

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  13. Select the correct statements.

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

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

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

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

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

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

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