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Which among the following reactions will...

Which among the following reactions will be favoured at low pressure?

A

`H_(2)(g)+I_(2)(g) hArr 2HI(g)`

B

`N_(2)(g)+3H_(2)(g) hArr 2NH_(3)(g)`

C

`PCl_(5)(g) hArr PCl_(3)(g)+Cl_(2)(g)`

D

`N_(2)(g)+O_(2)(g) hArr 2NO(g)`

Text Solution

Verified by Experts

The correct Answer is:
C
Number of moles are less on reactant side, hence on lowering the pressure, reaction will proceed in forward direction.
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CENGAGE CHEMISTRY ENGLISH-CHEMICAL EQUILIBRIUM-Ex 7.2
  1. In which of the following equilibrium ,change in volume of the system ...

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  2. In the dissociation of 2HI hArr H(2)+I(2), the degree of dissociation ...

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  3. In line kilns, the following reaction, CaCO(3)(s) hArr CaO(s)+CO(2)(...

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  4. Which among the following reactions will be favoured at low pressure?

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  5. If E(f) and E(r) are the activation energies of forward and backward r...

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  6. K(p) for a reaction at 25^(@)C is 10 atm. The activation energy for fo...

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  7. The concentration of a pure solid or liquid phase is not include in th...

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  8. For an equilibrium reaction involving gases, the forward reaction is f...

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  9. For the reaction, PCl(3)(g)+Cl(2)(g) hArr PCl(5)(g), the position of e...

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  10. What are the favourable conditions for the synthesis of ammonia.

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  11. Which of the following change will shift the reaction in forward direc...

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  12. In a vessel containing SO(3), SO(2) and O(2) at equilibrium, some heli...

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  13. Vapour density of the equilibrium mixture of NO(2) and N(2)O(4) is fou...

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  14. Calculate the pressure of CO(2) gas at 700 K in the heterogenous equil...

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  15. The equilibrium constant K(p(2)) and K(p(2)) for the reactions A hArr ...

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  16. For I(2)(g) hArr 2I(g), K(p)=1.79xx10^(-10). The partial pressure of I...

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  17. Calculate the volume percent of chlorine gas at equilibrium in the dis...

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  18. N(2)O(4) hArr 2NO(2), K(c)=4. This reversible reaction is studied grap...

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  19. The equilibrium: P(4)(g)+6Cl(2)(g) hArr 4PCl(3)(g) is attained by ...

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  20. N(2)O(4)(g) is dissociated to an extent of 20% at equilibrium pressure...

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