The reversible reaction: 2so₂ + o₂ ⇄ 2so₃ has come to equilibrium in a vessel of specific volume at a given temperature. before the reaction began, the concentrations of the reactants were 0.060 mol/l of so₂ and 0.050 mol/l of o₂. after equilibrium is reached, the concentration of so₃ is 0.040 mol/l. what is the equilibrium concentration of o₂?
