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| 低级直链醇分子横截面积测定实验的改进研究* | |
| 引用本文： | 刘玉琛,王壹,魏丽娜,刘炎鑫,高铭.低级直链醇分子横截面积测定实验的改进研究*[J].化学教育,2020,41(2):39-43. |
| 作者姓名： | 刘玉琛 王壹 魏丽娜 刘炎鑫 高铭 |
| 作者单位： | 1.东北农业大学理学院 黑龙江哈尔滨 150030; 2.沈阳市第五中学 辽宁沈阳 110044 |
| 基金项目： | 教育教学改革研究项目;教育教学研究项目;中华农业科教育基金教材建设研究项目 |
| 摘 要： | 为提高教学实验低级直链醇分子横截面积测定结果的准确性,本研究通过最大气泡法,以Szyszkowski公式为拟合方程,在所设定的4个浓度区间内对各种低级直链醇的分子横截面积进行系统化研究,从而确定了不同醇适用该法的大致浓度区间,同时讨论了直链醇碳链长度、浓度与醇分子表面吸附行为3者之间的内在联系。 |
| 关 键 词： | 低级直链醇 分子横截面积 吸附 |
Improvement of Experiment of Cross-Sectional Area of Lower Straight-Chain Alcohol Molecule |
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| LIU Yu-Chen,WANG Yi,WEI Li-Na,LIU Yan-Xin,GAO Ming.Improvement of Experiment of Cross-Sectional Area of Lower Straight-Chain Alcohol Molecule[J].Journal of Chemical Education,2020,41(2):39-43. | |
| Authors: | LIU Yu-Chen WANG Yi WEI Li-Na LIU Yan-Xin GAO Ming |
| Institution: | 1. Department of Applied Chemistry, School of Science, Northeast Agricultural University, Harbine 150036, China; 2.The NO.5 Middle School of Shenyang, Shenyang 110044,China |
| Abstract: | In order to improve the accuracy of measuring the cross-sectional area of lower straight-chain alcohol molecular in teaching experiments,by using the maximum bubble method and Szyszkowski formula as the fitting equation,the molecular cross-sectional area of various lower straight-chain alcohols in four concentration ranges were systematically investigated,and it was determined that the ranges of different concentration were suitable for the determination of the various molecular alcohol cross-sectional area by this method in this study.Furthermore,it was discussed that there was intrinsic relationship among the length of carbon chain,the concentration and the adsorption behavior on the surface of the alcohol molecule. |
| Keywords: | lower straight-chain alcohol cross-sectional area adsorption |
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