关于弯曲界面气液两相相平衡化学势相等热力学判据的讨论

• 发布日期:2016-12-20
• 通讯作者: 肖赛君 E-mail:jxddroc@126.com
• 基金资助:
国家自然科学基金(51404001);安徽省留学回国人员创新创业扶持计划资助项目[2016]

Discussion on Thermodynamic Criterion of Equal Chemical Potential for Phase Equilibrium between Gas and Liquid in Curved Interface

Sai-Jun XIAO*(),Jian LIU,Zhen-Xing YIN,Jun ZHANG

• Published:2016-12-20
• Contact: Sai-Jun XIAO E-mail:jxddroc@126.com
• Supported by:
国家自然科学基金(51404001);安徽省留学回国人员创新创业扶持计划资助项目[2016]

Abstract:

Thermodynamic criterion of equal chemical potential for phase equilibrium between gas and liquid in curved interface has been introduced in many textbooks and papers. In this paper, the process of the derivation of the criterion is proved to be wrong with analysis. In order to solve the problem, a proof procedure for the thermodynamic criterion of equal chemical potential is provided based on the definition of chemical potential. At the same time, a new thermodynamic criterion of two-phase equilibrium in curved interface is established using Gibbs interface thermodynamics and a new method for derivation of Kelvin equation is put forward based on the thermodynamic criterion of two-phase equilibrium. The new criterion which is derived directly from the second law of thermodynamics has a specific thermodynamic significance and clear physical model.

MSC2000:

• G64