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Air contains 79% N(2) and 21% O(2) by vo...

Air contains `79% N_(2)` and `21% O_(2)` by volume. If the barometric pressure is `750 mm Hg`. The partial pressure of oxygen is

A

157.5 mm of Hg

B

175. 5 mm of Hg

C

315.0 mm o fHg

D

257.5 mm of Hg

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A
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MOTION-GASEOUS STATE -EXERCISE -1 (INTRODUCTION & STATE PARAMETERS)
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  3. Air contains 79% N(2) and 21% O(2) by volume. If the barometric pressu...

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  4. A gas 'A' having molecular weight 4 diffuses thrice as fast as the gas...

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  5. The increasing order of effusion among the gases H(2), O(2), NH(3) and...

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

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  7. In which of the following pairs the gaseous species diffuse through a ...

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  8. In a closed vessel of 5 litres capacity, 1 g of O(2) is heated from 3...

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  9. Which is not correct in terms of kinetic theory of gases?

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  10. The kinetic energy of 1 mole of gas is equal to -

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  11. Which one of the following gases would have the highest r.m.s. velocit...

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  12. If the r.m.s. velocity of 5.15 m s^(-1) at 298 K, then a velocity of 1...

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  13. The rms speed at NTP of a gas can be calculated from the expression:

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  14. In two vessels of 1 litre each at athe same temperature 1g of H(2) and...

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  15. The density of a gas filled in electric lamp is 0.75kg//m^(3) . After ...

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  16. At STP, the order of mean square velocity of molecules of H(2), N(2), ...

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  17. Most probable speed, average speed and RMS speed are related as -

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  18. The root mean square velocity of an ideal gas in a closed container of...

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  19. The Vander Waal's equation explains the behavior of -

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  20. The correct expression for the van der Waal's equation of state is

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