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

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

Question

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

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

Canvas Classes · Accepted Answer

Step 1 — Identify the state of each species:

Reaction:

- : solid → not in  expression
- CO: gas → in  expression
- : gas → in  expression
- Fe: liquid → not in  expression

Step 2 — Evaluate each option:

- (1) Add : Increases product concentration → shifts backward (disturbs equilibrium)
- (2) Remove : Decreases product → shifts forward (disturbs equilibrium)
- (3) Add : Pure solid — no effect on equilibrium ✓
- (4) Remove CO: Decreases reactant → shifts backward (disturbs equilibrium)

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