统计热力学模型对液体混合物导热系数的研究

Research on Thermal Conductivity of Liquid Mixtures Based on the Statistical Thermodynamic Model of Solutions

应用溶液统计热力学方法和溶液理论，建立了多元液体混合物的统计热力学 模型。将该模型与溶液传热反应速率理论相结合，导出了一个新的多元液体混合物的导 热系数方程。该方程应用于９７个二元体系的关联和１５个多元（三元、四元、五元〕 体系的推算，方程的计算值与实验值吻合。这表明应用溶液统计热力学模型可以对溶液 的导热系数进行研究。

Based on the method of statistical thermodynamics of solutions, a statistical thermodynamic model of liquid mixtures is given. Combining the model with the reaction rate theory of thermal conduction established by authors,a new thermal conductivity equation of liquid mixtures is given. The equation has applied to 95 binary systems, including water, alcohol,acid for correlation and to 15 multicomponent systems for prediction.The results show that the equation is of good applicability and reliability.The statistical thermodynamic model of solutions can be used to study the transport properties of solutions.