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Citation: Sanbing Zhang, Li Zhang, Zuopeng Li. 农科普通化学稀溶液依数性的情景教学实践与教学难点思考[J]. University Chemistry, ;2022, 37(8): 211207. doi: 10.3866/PKU.DXHX202112075 shu

农科普通化学稀溶液依数性的情景教学实践与教学难点思考

1.
Department of Chemistry, College of Science, China Agricultural University, Beijing 100193, China;
2.
Institute of Applied Chemistry, Shanxi Datong University, Datong 037009, Shanxi Province, China

Corresponding author: Li Zhang, zhlily@cau.edu.cn
Received Date: 27 December 2021

探讨在农科普通化学稀溶液依数性教学中结合学生专业运用情景教学法的实践，有利于提高学生学习兴趣，也有利于提高学生学习效果。针对国内普通化学教材中关于稀溶液依数性中蒸气压下降公式中k表达式的不同表示形式，从蒸气压下降公式的推导入手，提出了两者表示形式不同的原因是物理量量纲问题引起的。该方法减少学生相关计算的出错概率，并有助于强化学生对蒸气压下降及稀溶液其他依数性的理解。
- Situational teaching,
- Dilute solution,
- Colligative property,
- Vapor pressure lowering,
- Vapor pressure lowering constant
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