question_answer

Would you expect equilibrium constant for the reaction \[{{I}_{2}}(g)\rightleftharpoons 2I(g)\] to increase or decrease as temperature increases. Assign reason.

Answer:

                In the forward reaction, energy is needed to bring about the dissociation of \[{{I}_{2}}(g)\] molecules. This means that the forward reaction is endothermic in nature. The increase in temperature will favour the forward reaction. Therefore, the equilibrium constant will increase with rise in temperature.