Process (contact, Haber Etc)

Question 1

Contact process: describe the conversion of sulfur dioxide to sulfur trioxide, giving the conditions and a chemical equation

Answer 1

• vanadium (V) oxide catalyst
• 450 degree celsius
• 1-5 atm (1atm)
• 2SO2 + O2 -> 2SO3
• reversible reaction

Question 2

Chemical formula of oleum

when concentrated sulfuric acid is added to sulfur trioxide to form oleum

Answer 2

H2S2O7

Question 3

Calcium oxide (quicklime) is made by heating calcium carbonate (limestone) in the furnace. It is a reversible reaction. Suggest why the conversion to calcium oxide is complete.

Answer 3

The carbon dioxide produced escapes / it is not a closed system