Essential Chemistry for IGCSE - The Chemical Industry (Section 1 - No. 22)
Why is sulfur dioxide converted to sulfur trioxide in the Contact process?
Sulfur trioxide is more stable than sulfur dioxide.
Sulfur trioxide reacts with water to produce sulfuric acid.
The reaction is exothermic.
To improve the yield of sulfuric acid.
Explanation
Sulfur trioxide reacts with water to form sulfuric acid.
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