对二甲苯和醋酸二元液体混合物在不同温度下的超额摩尔体积、粘度和热容
대이갑분화작산이원액체혼합물재불동온도하적초액마이체적、점도화열용
Excess Molar Volume, Viscosity and Heat Capacity for the Binary Mixture of p-Xylene and Acetic Acid at Different Temperatures
  • 万方数据
    中国化学工程学报(英文版) 중국화학공정학보(영문판)
    CHINESE JOURNAL OF CHEMICAL ENGINEERING
    2002年 5期 604-609 ,共6页

    杨长生%马沛生%唐多强%尹秋响%赵长伟

    양장생%마패생%당다강%윤추향%조장위



    viscosity%heat capacity%density%excess molar volume%molecular interaction


    Experimental densities, viscosities and heat capacities at different temperatures were presented overthe entire range of mole fraction for the binary mixture of p-xylene and acetic acid. Density values were used in thedetermination of excess molar volumes, VE. At the same time, the excess viscosity and excess molar heat capacitieswere calculated. The values of VE, ηE and cpE were fitted to the Redlich-Kister equation. Good agreements wereobserved. The excess molar volumes are positive with a large maximum value located in the central concentrationrange. The excess viscosity has an opposite trend to the excess molar volume VE. ηE values are negative over theentire range of the mixture. The cure of dependence of cEp on concentration has a special shape. The molecularinteraction between p-xylene and acetic acid is discussed.
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