Question

The following reaction occurs in the Blast Furnace where iron ore is reduced to iron metal:

$F{e}_2{O}_3\left(s\right)+3CO\left(g\right)\rightleftharpoons 2Fe\left(s\right)+3C{O}_2\left(g\right)$

Using Le Chatelier's principle, predict which one of the following will not disturb the equilibrium?

• A. Removal of $C{O}_2$
• B. Removal of CO
• C. Addition of $C{O}_2$
• D. Addition of $F{e}_2{O}_3$

Answer 1

The correct option is D Addition of $F{e}_2{O}_3$

$F{e}_2{O}_3\left(s\right)+3CO\left(g\right)\rightleftharpoons 2Fe\left(s\right)+3C{O}_2\left(g\right)$
Addition of $F{e}_2{O}_3$ will not disturb the equilibrium $F{e}_2{O}_3$ is in solid state and its concentration remains unchanged when more $F{e}_2{O}_3$ is added.
Hence, correct option is (d).