Q.

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

Fe2O3(s)+3CO(g)Fe(l)+3CO2(g)

Using the Le-chatelier's principle, predict which one of the following will not disturb the equilibrium.            [2024]

1 Removal of CO  
2 Addition of Fe2O3  
3 Removal of CO2  
4 Addition of CO2  

Ans.

(2)         

               Fe2O3(s)+3CO(g)Fe(l)+3CO2(g)

                  Kc=[CO2]3[CO]3

                  Fe2O3(s) do not affect the equilibrium. Hence addition or removal of Fe2O3(s) or Fe(l) do not affect the equilibrium.