Question
Fri April 11, 2014 By: Yash Sahu

Which of the following is/are correct about the equilibrium constant ?

(A) its value may increase by increase in temperature.

(B) its value decreases by decrease in temperature.

(C) its value may decrease with increase in temperature.

(D) its value is constant at all temperatures.

Expert Reply
Mon April 14, 2014
The correct option may be (A) or (C).

If the forward reaction is exothermic then increasing the temperature decreases the value of the equilibrium constant.
If the forward reaction is endothermic then increasing the temperature increases the value of the equilibrium constant.

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