MH(81)状态方程与液体粘度的计算  

MH(81) equation of state and calculation of liquid viscosity

作　　者：雷群芳[1] 林瑞森[1] 侯虞钧[2] 

机构地区：[1]浙江大学化学系,浙江杭州310027 [2]浙江大学化工系,浙江杭州310027

出　　处：《浙江大学学报（理学版）》2002年第2期166-173,共8页Journal of Zhejiang University（Science Edition）

摘　　要：在 Eyring的液体粘性流动分子模型基础上 ,导出一个双参数粘度新模型 ,把属于传递性质的粘度与物质的体积、蒸发内能以及过量函数等平衡性质联系起来 ,为状态方程在粘度推算中的应用构筑了桥梁 .用 MH(81)状态方程计算了 4 0个液体纯物质和 19个二元液体混合物的粘度 ,总体平均偏差分别为 1.82 %和 1.78% .On the basis of Eyring's molecular model of the viscous flow of liquid, a new two parameter viscosity model was proposed to relate the liquid viscosity, a non equilibrium property, to some equilibrium properties, the volume, the internal energy of vaporization and their excess properties. This enabled an equation of state to be applied to calculate the liquid viscosity. The MH(81) equation of state was used to calculate the viscosity for 40 pure liquids and 19 binary liquid mixtures. Comparison with the literature data shows that the calculation results are satisfactory with the overall average relative deviations of 1.82% and 1.78% for the investigated pure liquids and binary mixtures, respectively.

关 键 词：MH(81)状态方程 粘度 液体 纯物质 二元纯合物 双参数粘度模型 溶液理论 

分 类 号：O645.16[理学—物理化学]