Question

1. According to Le Chatelier’s Principle, does the equilibrium shift in the direction of products or reactants when O2 is added to the equilibrium mixture of each of the following reactions?

1. 3O2 (g) ↔ 2O3 (g)

2. 2CO2 (g) ↔ 2CO (g) + O2 (g)

​​​​​​​3. 2SO2 (g) + O2 (g) ↔ 2SO3 (g)

​​​​​​​​​​​​​​4. 2SO2 (g) + 2H2O (g) ↔ H2S (g) + 3O2 (g)

Answer 1

Acconding to the Le Chatelier's - Principle - - if in any reaction O₂ act as a reactants then on adding extra- -02 to the equilibrium mixture, then the equilibrium will shift to the forward weaction i.e. to the direction of prooducts and it 2 act as a prooduct in any reaction then on adding 2, the equilibrium will shift to the direction of reactants. 1 30₂ (3) 20 (9) I Here og is a reactant- So, on adding of the reaction will shift to the direction of brooducts. - 2 co2 (9) & 2 co(g) + O₂ (9) Here Op is the prooduct. So, on adding Oo, eam will shif to the direction of reactants.

2 s02 () + 02 (9) € 2 503 (9). Here Oq is a reactant. So, eam will shift to the product iv. 2.502 (9) +2 H20()<2H25 (9) +30 (9) As, Oq is a prooduct, then - the eam will shift to the reactants