QJEEAdv17Chfb75: JEE Advanced 2017 Chemistry - Class 11 JEEAdv17Chfb75 Solution: For a reaction taking place in a container in equilibrium with…

Question

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For a reaction taking place in a container in equilibrium with its surroundings, the effect of temperature on its equilibrium constant

K

in terms of change in entropy is described by

A With increase in temperature, the value of K for exothermic reaction decreases because the entropy change of the system is positive
B With increase in temperature, the value of K. for endothermic reaction increases because unfavorable change in entropy of the surroundings decreases
C With increase in temperature, the value of K for endothermic reaction increases because the entropy change of the system is negative
D with increase in temperature, the value of K for exothermic reaction decreases because favorable change in entropy of the surroundings decreases

Accepted Answer

$Δ S_{s u r r} = - \frac{Δ H}{T_{s u r r}}$

For endothermic, if T_surr increases, unfavourable change in entropy of the surroundings decreases.

For exothermic, if T_surr increases, favourable change in entropy of the surroundings decreases.

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