Abstract Combined with related concepts of environmental entropy change, chemical potential of the ideal dilute solution and polymers in physical chemistry, the theory of equivalent infinitesimal was used to analyze the calculation formula of the environmental entropy change and the chemical potential of the ideal dilute solution, and the key theoretical deduction in the experiment of the determination of the relative molecular mass of high polymer by viscosity method. Through theorem of proportion by addition and subtraction and physical chemistry knowledge of lever rule and ion transference number, the related formulas of the lever rule and ion transference number were derived. These methods could make the abstract and difficult physical chemistry knowledge specific and easy for students to understand, master and apply.
SHENG Wang-Qing, LIAO Hua, ZHU De-Mei. Application of Equivalent Infinitesimal and Theorem of Proportion by Addition and Subtraction in Physical Chemistry Teaching[J]. , 2016, 37(2): 71-73.
