CBSE Class 11-science Answered

Increasing Temperature.

Forward reaction is exothermic, which implies that the reverse reaction is endothermic. This implies that heat as a product of the forward reaction and as a reactant for the reverse reaction.

So, heat can be treated as a product in the forward reaction, which means that increasing the temperature will cause the equilibrium to shift to the left, since the forward reaction "consumes" the excess heat.

The equilibrium will thus remove the added heat by favoring the reaction that requires heat, i.e. the reverse reaction.