A mixture of two miscible liquids with widely different boiling points is distilled. The temperature of the distilled liquid is observed to plateau and then drop before rising again. Explain the temperature drop. If a mixture is distilled rapidly, the seperation of its components is poorer than if the mixture is distilled slowly. Explain.

Do not include the unexpected results

Answer is: the equilibrium  shifts toward the reactants, to the left side of chemical reaction.it is because lead(ii) nitrate dissociates in water: pb(no₃)₂ → pb²⁺(aq) + 2no₃⁻(aq).according to lechatelier's principle, the position of equilibrium moves to counteract thechange (more lead cations, common ion), the position of equilibrium will move so that the concentration ofproducts decrease and concentration of reactants of chemical reaction increase.read more on -