Manufacturing Sulphuric Acid

The video explains the contact process for producing sulfuric acid, which involves three stages: converting sulfur to sulfur dioxide, then to sulfur trioxide, and finally to sulfuric acid. The process uses a vanadium oxide catalyst and operates at high temperatures. Environmental measures include using acidic scrubbers to prevent acid rain.

What is the significance of adding water carefully in the final stage of the process?

What measures can be taken to prevent the release of acidic waste gases into the atmosphere?