本文以希什科夫斯基()经验公式和吉布斯(Gibbs)吸附等温式为理论依据,采用曲线的线性回归分析和镜面作切线的方法,探讨了乙醇水溶液体系的表面张力σ与浓度间的关系,解释了常规的物理化学理论未涉及的高浓度条件下吸附量与浓度间的“反常”现象,提出了适合于学生实验的浓度范围: In this paper, based on the empirical formula of Shishkovsky and Gibbs adsorption isotherm, the linear regression analysis of the curve and the mirror-tangential method were used to investigate the relationship between the surface tension σ and the concentration of ethanol in aqueous solution The relationship between the conventional physical and chemical theory explains the phenomenon of “abnormal” adsorption quantity and concentration under the condition of high concentration which is not involved in the conventional physical chemistry theory, and puts forward the concentration range suitable for the experiment of the student: