液体混合物的导热系数与汽液平衡之间的关系

Study on the Relationship between Thermal Conductivity and Vapor-Liquid Equilibrium of Liquid Mixtures

将统计热力学模型与作者建立的传热反应速率理论相结合，通过液体混合物中分子间的相互作用能、分子的大小和形状，将液体混合物的导热系数与汽液平衡相互联系起来，使这两类液体混合物的性质统一到分子间相互作用能、分子的大小和形状这一液体混合物的共性上，对这两类性质进行统一的描述，研究这两类性质之间的关系。对１１对二元体系根据液体混合物的导热系数对汽液平衡进行了推算。结果表明，所建立的液体混合物的模型能够描述它们的导热系数与汽液平衡之间的相互关系。

Combining the method of statistical thermodynamics with the rate theory of thermal conduction, the relationship between thermal conductivity and vapor-liquid equilibrium (VLE) of liquid mixtures is established by the interaction potential energy, the molecular size and shape of mole cules in liquid mixtures. So the two kinds of properties of liquid mixtures are unified to the basic properties of liquid mixtures, i. e. the interaction potential energy, the molecular size and shape of molecules in liquid mixtures and described by the basic properties. The prediction of VLE data from thermal conductivity data of 11 binary systems are studied. The results show that the established model of liquid mixtures can be used to describe the relationship between thermal conductivity and VLE of liquid mixtures.