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

With increase in temperature, the value of K for exothermic reaction decreases because the entropy change of the system is positive

With increase in temperature, the value of K for endothermic reaction increases because unfavourable change in entropy of the surroundings decreases

With increase in temperature, the value of K for endothermic reaction increases because the entropy change of the system is negative

With increase in temperature, the value of K for exothermic reaction decreases because favourable change in entropy of the surroundings decreases