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The average molecular speed is greatest ...

The average molecular speed is greatest in case of a gas sample of :

A

2.0 mole of He at 140 K

B

0.05 mole of Ne at 500 K

C

0.40 mole of `O_2` at 400 K

D

1.0 mole of `N_2` at 560 K

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The correct Answer is:
A
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MBD PUBLICATION-STATES OF MATTER (GASES AND LIQUIDS)-QUESTION BANK
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  4. Which of the following gases would have the highest RMS speed at 0^@C ...

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  7. At 27^@ C the ratio of root square speeds of ozone to oxygen is :

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  8. 22 g solid CO2 or dry ice is enclosed in a bottle of one litre properl...

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  9. According to Charles's law :

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  10. If a gas is heated at constant pressure, its density :

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  11. Longest mean free path under similar conditions of P and T stands for ...

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  13. Which gas has the highest partial pressure in atmosphere :

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  14. The compressibility of a gas is less than unity at S.T.P. Therefore :

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  15. The van der Waals' equation for equal real gas is :

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  16. With increase of pressure , the mean free path :

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