Question

Consider the following reaction at equilibrium. What will happen if O2 is added to the reaction?

4FeS2(s) + 11O2(g) <--> 2Fe2O3(s) + 8SO2(g)

A) The equilibrium constant will increase.

B) The equilibrium will change in the direction of the reactants.

C)The equilibrium will change in the direction of the products.

D)No change in equilibrium is observed.

E)The equilibrium constant will decrease.

2-

Identify the change that will always shift the equilibrium to the right.

2SO2(g) + O2(g) ⇋ 2SO3(g)

A) add Cu

B) adding He

C) remove product

D)remove reactant

E)increase the volume

Answer 1

1.

Ans :- Option (C) i.e.The equilibrium will change in the direction of the products is the correct answer, because according to Le-Chatelier's principle with increase the concentration of reactants species or decrease the concentration of products species, equilibrium will shifts in products side and vice-versa.

Also, equilibrium constant can change only with change in temperature.

2.

Ans :- Option (C) i.e. remove product is the correct answer, because according to Le-Chatelier's principle with increase the concentration of reactants species or decrease the concentration of products species, equilibrium will shifts in products side and vice-versa.