The Contact Process

Question 1

What are the raw materials needed to make sulfuric acid?

Answer 1

Sulfur, air, water

Question 2

What is the equation for stage 1 of the Contact process?

Answer 2

S(s) + O2(g) -> SO2(g)

Question 3

What happens in stage 1 of the contact process? (Generally)

Answer 3

Sulfur burns in air to produce sulfur dioxide

Question 4

What is the equation for stage 2 in the Contact process?

Answer 4

2SO2(g) + O2(g) ⇌ 2SO3(g)

Question 5

What happens in stage 2 of the Contact process?

Answer 5

Sulfur dioxide and oxygen react together to produce sulfur trioxide

Question 6

What are the conditions for stage 2 of the Contact process?

Answer 6

2 atmospheres pressure
450C
Vanadium oxide catalyst

Question 7

What is the equation for stage 3 of the Contact process?

Answer 7

H2O(l) + SO3(g) -> H2SO4 (aq)