The reaction 2SO₂(g) + O₂(g) ⇌ 2SO₃(g) reaches dynamic equilibrium. The forward reaction is exothermic. The reaction is catalysed by vanadium(V) oxide, V₂O₅. You are given a vessel containing all three gases at equilibrium.

a. What will happen to the position of equilibrium if:

i. You add more oxygen to the vessel?

ii. You remove some sulfur trioxide from the vessel?

iii. The pressure in the vessel is lowered?

iv. More V2O5 is added?

v. The temperature in the vessel is increased?

b. i. Give three uses of sulfuric acid.

ii. Why is it important that as little sulfur dioxide as possible is released into the atmosphere when sulfuric acid is manufactured?

iii. Explain, including a balanced equation, how sulfur dioxide enters the atmosphere from a coal fired power station.