| 拟静态法测定混合溶剂的汽化热和汽化熵 |
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| 引用本文： | 倪良,卢洁.拟静态法测定混合溶剂的汽化热和汽化熵[J].物理化学学报,1996,12(2):146-151. |
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| 作者姓名： | 倪良 卢洁 |
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| 作者单位： | Department of Chemistry,Zhenjiang Teachers' College,Zhenjiang 212003 |
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| 摘 要： | 讨论了沸点升高法测定混和溶剂化热和汽化熵的原理，并用拟静态法测定了乙醇－丙酮，并－四氯化碳和苯，甲苯三组混和溶剂在不同组成下的正常沸点，根据沸点数据求得了混和泶微分汽化热和汽化熵，实验结果表明，二元混和溶剂与理想溶液偏离不大时，其正常汽化熵符合Ｔｒｏｕｔｏｎ规则。
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| 关 键 词： | 混合溶剂 沸点升高 拟静态法 微分汽化热 |
| 收稿时间： | 1995-05-10 |
| 修稿时间： | 1995-10-09 |
Quasi-static Method for the Determination of the Heat and Entropy of Vaporization of the Solvent Mixture |
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| Ni Liang, Lu Jie.Quasi-static Method for the Determination of the Heat and Entropy of Vaporization of the Solvent Mixture[J].Acta Physico-Chimica Sinica,1996,12(2):146-151. |
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| Authors: | Ni Liang Lu Jie |
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| Institution: | Department of Chemistry,Zhenjiang Teachers' College,Zhenjiang 212003 |
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| Abstract: | The principles of the method of boiling point elevation with which the heat and entropy of vaporization of solvent drixture are deterInined are discussed in detail. Quasistatic method is used to deterndne the normal boiling poillts for dmerent concentrations of binary systems of ethanol-acetone, benzene-carbon tetrachloride and benzene-toluene.According to the data of boiling point, the differential heats and the entropies of vaPorization are calculated. The obtained results show that when the deviations of the binary solvent Anxture from the ideal solution are not notable the normal entropy of vaPorization of the solvent Anxture conforms to Trouton's rule. |
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| Keywords: | The solvent mixture Boiling point elevation Quasi-static method The differential heat of vaporization |
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