Question

The reaction $A+B\leftrightharpoons C+D+heat$, has reached equilibrium. It is possible to make the reaction to proceed forward:

• A. by adding more of $C$
• B. by adding more of $D$
• C. by raising the temperature of the system
• D. by lowering the temperature

Answer 1

The correct option is D by lowering the temperature

The reaction $A+B\iff C+D+heat$ is an exothermic reaction.

According to Le Chatelier's principle, as the temperature is lowered, the reaction will proceed in the direction so as to liberate heat and nullify the effect of lowering the temperature.

Hence, the reaction will proceed in the forward direction by lowering the temperature.