| 物理化学实验“滴重法测定液体表面张力”改革方案设计与实践 |
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| 引用本文： | 王光丽,朴银实,梁秀娟,郑秋容,赵泳,董玉明. 物理化学实验“滴重法测定液体表面张力”改革方案设计与实践[J]. 广东化工, 2010, 37(11): 169-170 |
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| 作者姓名： | 王光丽 朴银实 梁秀娟 郑秋容 赵泳 董玉明 |
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| 作者单位： | [1]江南大学化学与材料工程学院,江苏无锡214122 [2]山东省青州市北关初中,山东青州262500 |
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| 基金项目： | 江南大学质量工程建设项目 |
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| 摘 要： | 文章是在学生思考和教研室同仁的交流基础上,针对原实验方法中需要两个人协作完成、操作熟练要求高、偏差较大的特点,对滴重法测定表面张力方法进行了改革。新实验方案基于原有的实验原理,采用分析天平称重的方法进行,精度高、偏差小,一个人可以独立完成,具有较高的应用价值。同时,对文章新方案的误差来源进行了分析,提出了注意事项和适合范围。
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| 关 键 词： | 物理化学实验 表面张力 改革 |
Designing and Practice for Innovation of Physical Chemistry Experiment "Mensuration of Surface Tension by Drop-weight Method" |
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| Wang Guangli,Piao Yinshi,Liang XiuJuan,Zheng Qiurong,Zhao Yong,Dong Yuming. Designing and Practice for Innovation of Physical Chemistry Experiment "Mensuration of Surface Tension by Drop-weight Method"[J]. Guangdong Chemical Industry, 2010, 37(11): 169-170 |
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| Authors: | Wang Guangli Piao Yinshi Liang XiuJuan Zheng Qiurong Zhao Yong Dong Yuming |
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| Affiliation: | 1.School of Chemical and Material Engineering,Jiangnan University,Wuxi 214122;2.Beiguan Middle School of Qingzhou,Qingzhou 262500,China) |
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| Abstract: | According to the thought of students and the designing of teachers in our group,the innovation of physical chemistry experiment ＂mensuration of surface tension by drop-weight method＂ was carried out.The innovation was aiming the properties of demanding skilled operation by two students and high error.Based on the same principle and the application of analysis balance,novel method could be operated by only one student.The results obtained through new method were exact,which indicates promising application.The errors of new method were investigated,then the notice and scope were proposed. |
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| Keywords: | physical chemistry experiment surface tension innovation |
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