Question

The following reaction occurs in the Blast furnace where iron ore is reduced to iron metal:
\(\text{Fe}_2\text{O}_3(s) + 3\text{CO}(g) \rightleftharpoons 2\text{Fe}(l) + 3\text{CO}_2(g)\)
Using Le Chatelier's principle, predict which one of the following will not disturb the equilibrium.

• A. Addition of \( \text{Fe}_2\text{O}_3 \)
• B. Addition of \( \text{CO}_2 \)
• C. Removal of \( \text{CO} \)
• D. Removal of \( \text{CO}_2 \)

Answer 1

The Correct Option is A

Adding Fe₂O₃ will not disturb the equilibrium as it is a solid and its concentration does not appear in the equilibrium constant expression. Adding CO₂ or removing CO₂ will shift the equilibrium as per Le-Chatelier’s principle. Removing CO will also disturb the equilibrium by shifting it toward the reactants.

Thus, the correct answer is Option (1).