Which of the following will shift the equilibrium to the left? 2H₂S (g) + 3O₂ (g) 2SO₂ (g) + 2H₂O (g)

Question

Which of the following will shift the equilibrium to the left? 2H₂S (g) + 3O₂ (g)  2SO₂ (g) + 2H₂O (g)

Quizplus · Accepted Answer

According to Le Chatelier's principle, if the concentration of a reactant is increased or the pressure is decreased, the equilibrium will shift to the side with more moles of gas to decrease the pressure. In this case, adding sulfur dioxide will increase the concentration of product and decrease the concentration of reactant, which will shift the equilibrium to the left. Decreasing the pressure will also shift the equilibrium to the left. Thus, both A and C will shift the equilibrium to the left.

Which of the Following Will Shift the Equilibrium to the Left