首页|多函数模型拟合表面张力与浓度曲线的比较

多函数模型拟合表面张力与浓度曲线的比较

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为了更深入地研究表面张力的经典实验,利用Origin软件,采用多种函数模型对表面张力与浓度曲线分别进行拟合,并对每种函数拟合的优缺点加以讨论.其中对数函数拟合数学准确性较高,同时兼具物理意义,更贴切实况.明确了表面张力与浓度拟合的经典实验中以对数函数模型最为适宜.
Comparison of Multiple Function Methods for Fitting Surface Tension and Concentration Curves
In order to conduct a more in-depth study of the classic experiment on surface tension,various function models were employed using Origin software to fit the surface tension and concentration curves.The advantages and disadvantages of each function fitting were then discussed.It was found that the logarithm function exhibited high mathematical accuracy and also had a clear physical interpretation,making it more suitable and practical for fitting the surface tension and concentration curves.This finding provides valuable insights for data processing in college experimental teaching.

Multiple function modelsSurface tensionPhysical chemistry experimentNonlinear fittingOrigin software

韩瑞麟、阎晓琦

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南开大学化学学院,天津 300071

南开大学应用化学与工程研究所,天津 300071

多函数模型 表面张力 物理化学实验 非线性拟合 Origin软件

国家基础科学人才培养基金

J1103306

2024

大学化学
北京大学 中国化学会

大学化学

影响因子:0.636
ISSN:1000-8438
年,卷(期):2024.39(7)
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