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The value of 'a' for NH(3) is greater th...

The value of 'a' for `NH_(3)` is greater than that of `N_(2)`. This means:

A

`NH_(3)` has greater size

B

`NH_(3)` has greater attractions

C

`NH_(3)` has smaller size

D

`NH_(3)` has smaller attractions

Text Solution

Verified by Experts

The correct Answer is:
b
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Statement-1. Considering van der Waals' equation of state of NH_(3) and N_(2) [P+(a)/(V^(2))][V-b] = RT The value of van der Waals' constant for NH_(3) is more than tht for N_(2) Statement-2. Ammonia has lower molecular mass than N_(2) .

Assertion : Dipole moment of NH_(3) is greater than that of NF_(3) . Reason : Nitrogen is more electronegative than fluorine.

The electronegaivity difference between N and F is greater than that between N and H yet the dipole moment of NH_2 ( 1 .5 D) is larger than that of NF_3 ( 0. 2 D) . This is because :

Explain why bond angle of NH_(3) is greater than NF_(3) while bond angle of PH _(3) is less than that of PF _(3),

A : The bond angle of NH_3 is greater than BiH_(3) . R : 'Bi' is metal while N is non - metal .

GRB PUBLICATION-GASEOUS STATE-Exercise
  1. Select the incorrect statement(s).

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  2. For a real gas, behaving ideally, the pressure may be:

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  3. The value of 'a' for NH(3) is greater than that of N(2). This means:

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  4. Attractive forces between non-polar, real gas molecules are:

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  5. n moles of helium gas are placed in a vessel of volume V Litre, at T K...

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  6. Select the incorrect option for van der Waal's gas.

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  7. Which relationship does hold good for van der Waals' gas under all con...

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  8. At critical temperature:

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  9. Select the incorrect option.

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  10. {:("Gas",H(2),He,O(2),N(2)),("Critical temp. ink",33.2,5.3,154.3,126):...

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  11. Critical constants for a real gas are given as T(C)=180K, V(C)=0.1...

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  12. The third virial coefficient of He gas is 4xx10^(-2)(L//"mol")^(2), th...

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  13. If two gases have same value of a but different values of b(a and b ar...

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  14. Number of N(2) molecules present in 1 litre of vessel at 1 atm, 273K w...

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  15. Statement-1: Distribution pattern of speed will be more uniform for H(...

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  16. Assertion: Absolute zero temperature is a theoretically possible tempe...

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  17. Statement-1: 10g of CaCO(3) on heating gave 2.27L CO(2) at STP and 0.1...

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  18. Statement-1: Gas with lower molar mass will effuse or diffuse faster. ...

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  19. Assertion: Pressure exerted by a mixture of gases is equal to the sum...

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  20. Statement-1: CH(4),CO(2) has value of Z (compressibility factor) less ...

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