What happens to the position of equilibrium if a reversible reaction is subjected to a decrease in temperature?
A. The position of equilibrium shifts to the left
B. The position of equilibrium shifts to the right.
C. The position of equilibrium remains unchanged
D. The reaction stops
Correct Option: Answer is A
When the temperature is decreased in a reversible reaction, the equilibrium shifts in the direction that produces heat (exothermic direction). For an exothermic reaction, this means the equilibrium position shifts to the left, favoring the reverse reaction.