For the equilibrium, PCl5 PCl3 + Cl2
temperature remaining constant:
Kc will increase with the increase in volume
Kc will increase with the decrease in volume.
Kc will not change with the change in volume
Kc may increase or decrease with the change in volume
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