摘要
根据热力学原理，不忽略溶剂液态和固态的热容受温度的影响，推导出凝固点降低法精确计算溶液中溶剂活度的方程式．最后用不同的方程计算了水溶液中水的活度，且对其进行了比较．
The freezing point depression of solution has been used to determine the activity of the solvent for many years.But so far in this determination the equations for the calculation are approximate . In this paper, the change of the freezing heat with temperature was considered and almost all approximation have not been used in deriving the equation.The values of the water (solvent) activity were calculated by the differcnt equations.
出处
《纺织高校基础科学学报》
CAS
1998年第1期78-80,共3页
Basic Sciences Journal of Textile Universities
关键词
凝固点
活度
热力学
溶液
热容
freezing point,activity,thermodynamics,solution,heat capacity
