饱和蒸汽压下单元液体的物态方程及其应用

将玻尔兹曼分布律应用于饱和蒸汽压下单元液体的液体表面保守力场中,用液体表面自由能作为状态参量之一,推导出了单元液体的物态方程。进一步应用该物态方程导出了液体表面热力学函数、克劳修斯-克拉珀龙方程与表面张力系数的理论公式。用理论计算液体表面张力系数的良好结果验证:由玻尔兹曼分布律推导出的单元液体的物态方程,不仅形式简单、物理意义明确,而且实际应用结果具有良好的准确性与普遍性。在单元液体物态物理的精确计算处理方面,作出了有益的探索。

State Equation of the Unitary Liquid and Its Application under Saturated Vapor Pressure

Applying Boltzmann distribution law on a conservative force field at the unitary liquid surface under saturated vapor pressure,and using the surface free energy of liquid as one of the state parameters of liquid,the state equation of the unitary liquid was derived.Further,from this equation,several theoretics formula were derived,they are the thermodynamic functions of the liquid surface,Clausius-Clapeyron equation and the surface tension coefficient formula of the liquid.Applying theoretical calculation results on the surface tension coefficient formula of the liquid,it was proved that the state equation of the unitary liquid derived from Boltzmann distribution law,is really not only form-simple and physical-meaning-clear but also accurate and universal on practical application.It makes a useful exploration in the accurate calculation and physical treatment of the unitary liquid state.