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The van der Waal equation of gas is (P...

The van der Waal equation of gas is
`(P + (n^(2)a)/(V^(2))) (V - nb) = nRT`

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In the van der Waals equation

Van Der Waals Equation

In the van der Waals equation (P + (n^(2)a)/(V^(2)))(V - nb) = nRT the constant a reflects the actual volume of the gas molecules.

For real gases, van der Waals' equation is written as (P+(an^(2))/(V^(2))) (V-nb)= nRT where a and b are van der Waals' constants. Two sets of gases are: (I) O_(2), CO_(2), H_(2) and He(II) CH_(4), O_(2) and O_(2) and H_(2) The gases given in set I in increasing order of b and gases given in set II in decreasing order of a are arranged below. Select the correct order from the following:

In the Van der Waals equation (P + (n^(2)a)/(V^(2))) (V-nb) = nRT , why is the term n^(2)a//V^(2) positive in sign.

The unit of the van der Waals gas equation parameter 'a' in (P+(an^(2))/(V^(2)))(V-nb)=nRT is :

CENGAGE CHEMISTRY-STATES OF MATTER-Exercises (Ture False)
  1. In the microscopic model of the gas, all the moleculer are supposed to...

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  2. For real gases, at high temperature Z = 0 small value of a means gas...

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  3. Small value of a means, gas can be easily liqueifed.

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  4. Rate of diffusion is directly proportional to the square root of molec...

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  5. For ideal gases, Z = 1 at all temperature and pressure.

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  6. According to charles's law,

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  7. The pressure of moist gas is higher than pressure of dry gas.

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  8. Gases do not occupy volume and do not have force of attraction.

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  9. The van der Waal equation of gas is (P + (n^(2)a)/(V^(2))) (V - nb)...

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  10. Surface tension and surface energy have different dimensions.

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  11. The plot of PV vs P at particular temperature is called isovbar.

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  12. Equal volume of all gases always contains equal number of moles.

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  13. A gas with a = 0 cannot be liquified.

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  14. The van der waals constants have same values for all the gases.

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  15. All the molecules in a given sample of gas move with same speed.

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  16. The observed pressure of real gas is more than the ideal pressure.

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  17. Heat capacity of a diatomic gas is higher than that of a monoatomic ga...

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  18. Dry O(2) is heavier than moist O(2).

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

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  20. The gas above T(c ) cannot be liquefied.

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