Essential Chemistry for IGCSE - Chemical Reactions (Section 6 - No. 15)
Which change will shift the equilibrium to the right for the reaction: 2SO₂(g) + O₂(g) ⇌ 2SO₃(g) ΔH < 0
Increase in temperature
Increase in pressure
Adding a catalyst
Removing SO₃
Explanation
Increasing the pressure favors the side with fewer moles of gas (SO₃). Removing the product (SO₃) will favor the forward reaction.
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