Question

The formation of ammonia from its constituent elements is an exothermic reaction. \ The effect of increase in temperature on the reaction equilibrium is:

• A. The rate of the forward reaction becomes zero
• B. No effect of temperature
• C. Forward reaction is favored
• D. Backward reaction is favored

Hint:

In exothermic reactions, increasing temperature shifts equilibrium backward.

Answer 1

The Correct Option is D

Since the formation of ammonia is exothermic, increasing temperature will shift the equilibrium in the direction that absorbs heat — i.e., the backward direction (Le Chatelier’s principle).