Consider the following equilibrium. 2 SO₂ (g) + O₂ (g) 2 SO₃ (g)
The equilibrium cannot be established when ________ is/are placed in a 1.0-L container.

Question

Consider the following equilibrium. 2 SO₂ (g) + O₂ (g) 2 SO₃ (g) The equilibrium cannot be established when ________ is/are placed in a 1.0-L container.

Quizplus · Accepted Answer

According to the balanced equation, the only reactant required for the reaction is SO₂ (g). Therefore, the equilibrium cannot be established without this reactant. Option B provides only 0.75 mol of SO₂ (g) which is insufficient to establish the equilibrium, whereas all other options provide at least 1.0 mol of SO₂ (g) which is more than enough to establish the equilibrium.

Consider the Following Equilibrium