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A gas will approach ideal behaviour at...

A gas will approach ideal behaviour at

A

Low temperature and low pressure

B

High temperature and low presssure

C

High temperature and high pressure

D

Critical temperature

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The correct Answer is:
B
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A: A real gas will approach ideal behaviour at high temperature and low pressure. R: At low pressure and high temperature z = 1, for all gases

Real gases will approach the behaviour of ideal gases at

Non-ideal gases approach ideal beheaviour under :

Statement-1 : At low pressure and high temperature real gas approaches the ideal gas behaviour. and Statement-2 : At low prossure and high temperature the molecules are negligible.

One of the important approach to the study of real gases involves the analysis of parameter Z called the compressibility factor Z = (PV_(m))/(RT) where P is pressure, V_(m) is molar volume, T is absolute temperature and R is the universal gas constant. such a relation can also be expressed as Z = ((V_(m)real)/(V_(m)ideal)) (where V_(m ideal) and V_(m real) are the molar volume for ideal and real gas respectively). Gas corresponding Z lt 1 have attractive forces amoung constituent particles. As the pressure is lowered or temperature is increased the value of Z approaches 1. (reaching the ideal behaviour) {:("Observation",,"Conclusion"),(I.Z =1,,I."The gas need not be showing the ideal behaviour"),(II. Zgt1,, II. "On applying pressure the gas will respond by"),(,,"increasing its volume"),(III. Z lt 1,, III. "The gas may be liquefied"),(IV. Z rarr1 "for low" P,, IV. "The gas is approaching the ideal behaviour") :}

For a certain gas which deviates a little from ideal behaviour, a plot between P/p vs P was found to be non- linear . The intercept on y-axis will be :

A real gas most closely approaches the behaviour of an ideal gas at:

A real gas deviates most from ideal behaviour at

For a gas deviation from ideal behaviour is maximum at :

Assertion : For a certain fixed amount of gas the product PV is always constant Reason : Real gases deviate from ideal behaviour of low pressure and high temperature

VMC MODULES ENGLISH-STATES OF MATTER-IMPECCABLE
  1. A gas will approach ideal behaviour at

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  2. Pressure remaining the constant, the volume of a given mass of an idea...

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  3. In a closed flask of 5 L, 1.0 g of H(2) is heated from 300 to 600 K. W...

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  4. A vessel having certain amount of oxygen at certain pressure and tempe...

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  5. In which of the following two cases more number of grams of gas molecu...

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  6. An ideal gas cannot be liquefied because

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  7. A closed flask contains water in all its three states solid, liquid an...

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  8. What is the temperature at which oxygen molecules have the same r.m.s....

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  9. The volume-temperature graphs of a given mass of an ideal gas at const...

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  10. The most probable velocity of a gas molecule at 298 K is 300 m/s. Its ...

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  11. A cylinder of 5 L capacity, filled with air at NTP is connected with a...

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  12. Under what conditions will a pure sample of an idela gas not only exhi...

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  13. If a gas expands at contant temperature, it indicates that :

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  14. The temperature of a gas is raised from 27 ^@ C to 927^@C The root ...

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  15. At what temperature, the rate of effusion of N2 would be 1.625 times ...

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  16. By the ideal gas law, the pressure of 0.60 mole NH3 gas in a 3.00 L v...

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  17. Average K.E. of CO(2) at 27^(@)C is E. the average kinetic energy of N...

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  18. At 25^(@)C and 730 mm pressure, 380 mL of dry oxygen was collected.If ...

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  19. Volume occupied by one molecule of water (density = 1 g cm^(-3))

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  20. At identical temperature and pressure the rate of diffusion of hydroge...

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  21. In the temperature changes from 27^(@)C to 127^(@)C, the relative perc...

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