Excess volumes of quinoline with nitroalkanes: Interpretation by the Prigogine-Flory-Patterson theory

Excess volumes of V^E of binary liquid mixtures of quinoline with each of the nitroalkanes have been measured at 30°C as a function of composition using a continuous dilution dilatometer. The excess volumes are negative over the whole mole-fraction range for all the mixtures except quinoline + nitromethane, which exhibits positive V^E over the whole range. V^E results have been analyzed in the light of the Prigogine-Flory-Patterson theory, which divides V^E into three contributions. The agreement between experimental and theoretical values is reasonably good.