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The excluded volume of molecule in motio...

The excluded volume of molecule in motion is ……….. times, the actual volume of a molecule in rest

A

2

B

4

C

3

D

0.5

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The van der Waals constant b is realted to the volume occupied by the molecules of a gas. It is known as the excluded volume by the molecules of a gas. It is known as the excluded volume or noncompressible volume of the gas. It is equal to ……… times the actual volume of one mole of gas molecules.

The numerical value of b is ......times the actual volume occupied by one mole of gas molecule.

Two flasks A and B have equal volumes. The molecules in flask A are moving two times faster than the molecules in flask B . The number of molecules in flask A is eight times the number of molecules in flask B . Which of the following is true about the number of collisions with the walls?

The excluded volume (b) is = 4 (volume of one gas molecule)

Ideal gas equation is represented as PV=nRT . Gases present in universe were fond ideal in the Boyle's temperature range only and deviated more from ideal gas behavior at high pressure and low temperature. The deviation are explained in term of compressibility factor z . For ideal behavior Z=(PV)/(nRT)=1 . the main cause to show deviavtion were due to wrong assumptions made about forces oif attractions (which becomes significant at high pressure ) and volume V occupied by molecules in PV=nRT is supposed to be volume of gas or the volume of container in which gas is placed by assuming that gaseous molecules do not have appreciable volume. Actually volume of the gas is that volume in which each molecule of gas can move freely. If volume occupied by gaseous molecule is not negligible, then the term V would be replaced by the ideal volume which by available for free motion of each molecule of gas in 1 mole gas. V_("actual")= volume of container -volume occupied by molecules =v-b Where b represent the excluded volume occupied by molecules present in one mole of gas. Similarly for n mole gas V_("actual")=v-nb The ratio of coefficient of thermal expansion alpha=(((delV)/(delT))_(P))/V and the isothermal compressibility beta=-((delV)/(delP)_(T)) for an ideal gas is:

Calculate (a) the actual volume of a molecule of water (b) the radius of a water molecule assuming to be spherical (density of water = 1 g cm"^(-3) )

If the value of excluded volume of O_2 is 5.2 cm^3 then its critical volume will be

AAKASH INSTITUTE-STATES OF MATTER-EXERCISE
  1. At critical temperature pressure and volume. The compressibility facto...

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  2. The liquefaction behaviour of temporary gases like CO(2) approaches th...

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  3. The value of van der waal's constant 'a' for gases O(2),N(2),NH(3)andC...

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  4. Which of the following is correct?

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  5. Which of the following is correct?

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  6. A real gas has critical temperature and critical pressure as 40^(@)C a...

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  7. The ratio of Boyle's temperature and critical temperature for a gas is...

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  8. Van der Waal's equation at high pressure for 1 mole is

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  9. The excluded volume of molecule in motion is ……….. times, the actual v...

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  10. Inversion temperature is

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  11. Which of the following increases with the increase in temperature in c...

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  12. The condition of free vapourisation throughout the liquid is called

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  13. If pressure is 1 bar, then the boiling temperature is called

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  14. Liquids at higher altitude boil at (in comparison to sea level) -

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  15. Choose the correct statement(s)

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  16. Standard boilling points of the liquid is slightly

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  17. The rise of a liquid in a capillary tube is due to :

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  18. Which of the following is the unit of coefficient of viscosity

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  19. As the temperature rises viscosity of liquids

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  20. Which of the following is the most viscous liquid ?

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