For a reaction taking place in a container in equilibriumwith its surroundings, the effect of temperature on its equilibrium constant K in terms of entropy is described by

For a reaction taking place in a container in equilibriumwith its surr

1.	For a reaction taking place in a container in equilibriumwith its surroundings, the effect of temperature on its equilibrium constant K in terms of entropy is described by
Answer» With increase in temperature, the VALUE of K for endothermic reaction increase because unfavourable changein entropy of the surroundings DECREASES With increase temperature , the value of K for exothermic reaction decreases because favourable change in entropy of the surroundings decreases. With increase in temperature, the value of K for endothermic reaction increases because the entropychange of the SYSTEM is positive. With increase in temperature , the value of K for exothermic reaction decreasesbecause the entropy change of the system is positive. Solution :`DeltaS_("SURR") = - (DeltaH)/( T_("surr"))` For endothermica reaction , if`T_(surr)` increases, `DeltaS _(surr)`will increase `(:'DeltaH = +ve)` For exothermicreactions K increases with increase of temperature `(K= K_(f) //K_(b))` and in endothermicreaction, `k_(f)` increases with increase of temperature) WHEREAS for exothermic reaction,K decreases with increase of temperature ( because in these reactions, `k_(b)` increases with increase oftemperature) .