Which of the following do not change the value of K for a reaction?

Addition of catalyst

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Increase in temperature

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Increase in pressure

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Removal of one of the products

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Solution

The correct options are
A Increase in pressure
B Removal of one of the products
C Addition of catalyst
The following do not change the value of K for a reaction.
(A) Addition of catalyst: When a catalyst is added, the rates of forward and reverse reaction increase to same extent. Hence, the value of K remains unaffected.
(C) Increase in pressure: When pressure is increased, the reaction will shift in a direction, in which there is decease in pressure.
(D) Removal of one of the products: When one of the products is removed, the equilibrium will shift in the forward direction so that more and more products are formed.
However (B) Increase in temperature will affect the value of K. It will depend upon exothermic or endothermic nature of the reaction.

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Similar questions

Which of the following do not undergo significant expansion or contraction with change in their temperature?

Δ H

Δ S

A g_{2} O (s) \to 2 A g (s) + \frac{1}{2} O_{2} (g)

30.58 k J

66.11 J K^{- 1}

1

Give two examples for each of the following :

(a) The substances which sublime.

(b) The substances which do not change their state on heating.

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