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Give answer! - Physical and Chemical Equilibria - BITSAT

For the equilibrium, PCl\leftrightarrow PCl3 + Cl2

K_{c}=\frac{\alpha ^{2}}{(1-\alpha )v}, temperature remaining constant:

  • Option 1)

    Kc will increase with the increase in volume

  • Option 2)

    Kc will increase with the decrease in volume.

  • Option 3)

    Kc will not change with the change in volume

  • Option 4)

    Kc may increase or decrease with the change in volume

 
Answers (1)
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As learnt in

Features of equilibrium constant -

Equilibrium constant is temperature dependent  having one unique value for a particular reaction represented by a balanced equation at a given temperature.

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 Equilibrium constant is temperature dependent having a unique value at each temperature. It will not change with volume.


Option 1)

Kc will increase with the increase in volume

This option is incorrect

Option 2)

Kc will increase with the decrease in volume.

This option is incorrect

Option 3)

Kc will not change with the change in volume

This option is correct

Option 4)

Kc may increase or decrease with the change in volume

This option is incorrect

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