A decrease in the pressure of the reaction would?

Consider the reaction represented by the following equation: 2SO₂ + O₂ ⇌ 2SO₃

A. decrease in the concentration of SO₂
B. have no effect on the reaction
C. shift the equilibrium position to the left
D. shift the equilibrium position to the right

Correct Answer:

Option C – shift the equilibrium position to the left

Explanation

decrease in pressure favors the side with higher volume thus the equilibrium position will shift to the left