Q.

With increase in temperature generally the value of the equilibrium constant of endothermic reversible reaction

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Increases

Decreases

Change can not be predicted

Does not change

answer is A.

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Detailed Solution

Value of Keq is affected by temperature - True explanation - (Kf = rate constant of forward reaction, Kb = rate constant of backward reaction)Rate constant increases with increase in temperature. Increase in rate constant for exothermic reaction will be less than for an endothermic reaction.Let the forward reaction be exothermic reaction. So if temperature increases, Kf increases and Kb increases but increase in Kf is less than Kb.Keq decreases with increase in temperature.Let the forward reaction be endothermic reaction. So if temperature increases, Kf and Kb increases but increase in Kf is more than KbKeq increases with increase in temperature.

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