An equilibrium mixture of SO₂, O₂, and SO₃ at a high temperature contains the gases at the following concentrations: [SO₂] = 2.98 × 10⁻³ mol/L, [O₂] = 5.25 × 10⁻³ mol/L, and [SO₃] = 4.76 × 10⁻³ mol/L. Calculate the equilibrium constant, Kc, for the reaction:
K꜀= 2SO₂(g) + O₂(g) ⇔ 2SO₃(g)