The reaction 2 CaO(s)+ 2 SO₂(g)+ O₂(g)→ 2 CaSO₄(s)is the basis of
A)electrostatic precipitators.
B)chemical SO₂ scrubbers.
C)particulate removal.
D)The reaction is the basis of all of the above.

Question

Quizplus · Accepted Answer

The reaction 2 CaO(s)+ 2 SO₂(g)+ O₂(g)→ 2 CaSO₄(s) is the basis of chemical SO₂ scrubbers, which are used to remove sulfur dioxide (SO₂) from industrial and power plant emissions. The reaction involves the reaction of calcium oxide (CaO) with sulfur dioxide (SO₂) and oxygen (O₂) to form calcium sulfate (CaSO₄) which is a solid precipitate that can be easily removed from the flue gas. Therefore, chemical SO₂ scrubbers rely on this reaction to reduce emissions of sulfur dioxide. The reaction is not the basis of electrostatic precipitators or particulate removal.

The Reaction 2 CaO(s)+ 2 SO₂(g)+ O₂(g)→ 2 CaSO₄(s)is the Basis