Question

For the equlibrium 2 SO₃(g) ↔ 2 SO₂(g) + O₂(g) write the equilibrium constant expression.

Answer 1

The equilibrium constant expression for the given reaction is Ke = [SO₃]² / ([SO₂]²[O₂]). To calculate the equilibrium constant, substitute the given equilibrium concentrations into the expression.

Step-by-step explanation:

• [SO₃] represents the concentration of SO₃ in mol/L
• [SO₂] represents the concentration of SO₂ in mol/L
• [O₂] represents the concentration of O₂ in mol/L

To calculate the equilibrium constant, substitute the given equilibrium concentrations into the expression Ke = [SO₃]² / ([SO₂]²[O₂]). Ke = (1.1 M)² / ((0.90 M)² * (0.35 M)) = 1.21 / (0.810 * 0.35) ≈ 4.796 M⁻².