摘要
讨论了强电解质稀溶液的依数性,即凝固点降低、沸点升高和渗透压。以稀溶液的凝固点降低为例,利用Gibbs-Duhem公式,推导了强电解质稀溶液的凝固点降低公式,并利用Na Cl水溶液的凝固点降低实验验证了该公式的正确性。
Colligative properties of dilute strong electrolyte solution,i.e.,freezing point depression,boiling point elevation and osmotic pressure,are discussed.As an example,the freezing point depression equation of dilute strong electrolyte solution is derived with the help of Gibbs-Duhem equation.This equation is verified with the freezing point depression experiments of aqueous sodium chloride solutions.
作者
陈美婷
顾聪
姚喆
陈飞武
张恒建
熊楚强
CHEN Meiting;GU Cong;YAO Zhe;CHEN Feiwu;ZHANG Hengjian;XIONG Chuqiang(Department of Chemistry and Chemical Engineering,School of Chemistry and Biological Engineering,University of Science and Technology Beijing,Beijing 100083,P.R.China)
出处
《大学化学》
CAS
2019年第1期92-97,共6页
University Chemistry
基金
北京科技大学研究型示范教学项目
关键词
强电解质
稀溶液
依数性
凝固点降低
沸点升高
渗透压
Strong electrolyte
Dilute solution
Colligative property
Freezing point depression
Boiling point elevation
Osmotic pressure
