Contact Process

Select all the raw materials for the Contact process.

• Sulfur

• Air

• Hydrogen

• Water

The Contact process is used for the manufacture of...

• Sulfur

• Sulfur dioxide

• Sulfur trioxide

• Sulfuric acid

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

Name the catalyst used in the Contact process.

• Finely-divided Iron

• Vanadium (V) Oxide

• Nickel

• Chromium

What are the conditions used in the Contact process?

• $1\ atm$ and $450\ \degree C$

• $200\ atm$ and $450\ \degree C$

• $450\ atm$ and $1\ \degree C$

• $450\ atm$ and $200\ \degree C$

Tags

NGSS.HS-PS1-5

What is H₂S₂O₇?

• Concentrated sulfuric acid

• Sulfur trioxide

• Oleum

• Hydrogen sulfate

Why is sulfur trioxide not dissolved directly in water?

• There would be no reaction

• Sulfur trioxide is insoluble in water

• Sulfur trioxide reacts violently with water to produce fog of H₂SO₄

• Sulfur trioxide needs to be dry

What are the uses of sulfuric acid? Choose the correct answers.

• In the manufacture of detergents and fertilisers

• As a battery acid

• As food preservative

• As a bleach

In the Contact process, what happens to the equilibrium when the pressure is increased?

• Shifts to the left

• Shifts to the right

• No change in equilibrium

Tags

NGSS.HS-PS1-6

The enthalpy change of a reaction in the Contact process reads as  $\Delta H=-197$  kJ/mol. What does this tell us about the reaction?

• It is an exothermic reaction

• It is an endothermic reaction

• It loses 197 grams of reactant

• It produces 197 grams of product

Tags

NGSS.HS-PS1-4

What is the pH of sulfuric acid?

• pH 2

• pH 7

• pH 8

• pH 13