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
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a
with increase in temperature , the value of K for exothermic reaction decreases because favourable change in entropy of the surroundings decreases.
b
with increase in temperature , the value of K for exothermic reaction decrease because the entropy change of the system is positive
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 endothermic reaction increases because unfavourable change in entropy of the surroundings decreases
answer is A.
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Detailed Solution
For Exothermic Reaction, DH = -ve K decreases with raise in Temp(ΔS)sys=qT=ΔHT=ΔH=−ve So (ΔS)sys=−ve(ΔS)surr=−ve