For the equilibrium 2SO₂(g) + O₂(g) ⇌ 2SO₃(g), ΔH < 0. Which change will shift the equilibrium to the right?
Decreasing the temperature
Increasing the temperature
Decreasing the pressure
Increasing the volume of the container
📝 Detailed explanation
Since the reaction is exothermic (ΔH < 0), decreasing the temperature shifts the equilibrium toward the product side (right) to produce more heat, according to Le Chatelier's principle.
