`aA+bBhArrcC+dD`
In above reaction low pressure and high temperature, conditions are shift equilibrium in back direction so correct set:

High pressure and high temperature will be favourable conditions for a high equilibrium yield in the reaction

High pressure and high temperature will be favourable conditions for a high equilibrium yield in the reaction

Assertion (A) : The value of K increases with increase in temperature in case of endothermic reaction Reason (R) : The increase in temperature shifts the equilibrium in the backward direction in case of exothermic reaction.

Assertion (A) : The value of K increases with increase in temperature in case of endothermic reaction Reason (R) : The increase in temperature shifts the equilibrium in the backward direction in case of exothermic reaction.

Assertion : In the dissociation of PCl_(5) at constant pressure and temperature addition of helium at equilibrium increases the dissociation of PCl_(5) . Reason : Helium reacts with Cl_(2) and hence shifts the equilibrium in forward direction.

Assertion : In the dissociation of PCl_(5) at constant pressure and temperature addition of helium at equilibrium increases the dissociation of PCl_(5) . Reason : Helium reacts with Cl_(2) and hence shifts the equilibrium in forward direction.

High pressure and low temperature are favourable conditions for the synthesis of ammonia.

High pressure and low temperature are favourable conditions for the synthesis of ammonia.