化学势-温度关系图的绘制及相关应用  

Drawing of Chemical Potential-temperature Relationship Diagram and its Application

作　　者：孙素芳[1] 霍树营[1] 高勇军 Sun Sufang;Huo Shuying;Gao Yongjun(College of Chemistry and Materials Science,Hebei University,Hebei,071002)

机构地区：[1]河北大学化学与材料科学学院,河北071002

出　　处：《当代化工研究》2024年第18期132-134,共3页Modern Chemical Research

基　　金：河北省高等教育教学改革与实践项目“国家级一流本科专业建设背景下高校《物理化学》‘精准施教’研究与探索”(项目编号:2022GJJG013);河北大学研究生教育教学改革项目“‘双翼’理论驱动的双创型研究生培养的初步研究”(项目编号:YJGYB2313)。

摘　　要：根据定压条件下化学势随温度的变化关系及相关热力学数据,通过数据处理,得到水的不同相态时的化学势与温度关系式,并绘制了水的化学势-温度曲线。利用这一化学势-温度关系图对稀溶液的依数性(沸点升高、凝固点降低、渗透压)及单组分相变规律进行了较为直观的解释。Based on the relationship between chemical potential and temperature at constant pressure and using thermodynamic data,formulas for the temperature-dependent chemical potential of water in its various phases were derived.Subsequently,chemical potential-temperature curves for water were generated.These graphs were then used to provide a more intuitive explanation for colligative properties of dilute solutions(boiling point elevation,freezing point depression,and osmotic pressure),as well as the principles governing phase transitions of a single component.

关 键 词：化学势 温度 依数性 相平衡 

分 类 号：TQ423.2[化学工程]