Measurements of the heat capacity of an azeotropic mixture of water and n-butanol from 78 to 320 K
文献类型：期刊论文
| 作者 | Nan, ZD; Tan, ZC; Xing, J |
| 刊名 | chinese journal of chemistry
 |
| 出版日期 | 2005-10-01 |
| 卷号 | 23期号:10页码:1297-1302 |
| 关键词 | adiabatic calorimetry heat capacity excess heat capacity azeotropic mixture water n-butanol |
| 产权排序 | 1;1 |
| 通讯作者 | 南照东 |
| 英文摘要 | molar heat capacities of n-butanol and the azeotropic mixture in the binary system [water (x=0.716) plus n-butanol (x=0.284)] were measured with an adiabatic calorimeter in a temperature range from 78 to 320 k. the functions of the heat capacity with respect to thermodynamic temperature were established for the azeotropic mixture. a glass transition was observed at (111.9 +/- 1.1) k. the phase transitions took place at (179.26 +/- 0.77) and (269.69 +/- 0.14) k corresponding to the solid-liquid phase transitions of. n-butanol and water, respectively. the phase-transition enthalpy and entropy of water were calculated. a thermodynamic function of excess molar heat capacity with respect to temperature was established, which took account of physical mixing, destructions of self-association and cross-association for n-butanol and water, respectively. the thermodynamic functions and the excess thermodynamic ones of the binary systems relative to 298.15 k were derived based on the relationships of the thermodynamic functions and the function of the measured heat capacity and the calculated excess heat capacity with respect to temperature. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, multidisciplinary |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | thermodynamic functions |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000232213200003 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/93489]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Qufu Normal Univ, Dept Chem, Shandong 273165, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Nan, ZD,Tan, ZC,Xing, J. Measurements of the heat capacity of an azeotropic mixture of water and n-butanol from 78 to 320 K[J]. chinese journal of chemistry,2005,23(10):1297-1302. |
| APA | Nan, ZD,Tan, ZC,&Xing, J.(2005).Measurements of the heat capacity of an azeotropic mixture of water and n-butanol from 78 to 320 K.chinese journal of chemistry,23(10),1297-1302. |
| MLA | Nan, ZD,et al."Measurements of the heat capacity of an azeotropic mixture of water and n-butanol from 78 to 320 K".chinese journal of chemistry 23.10(2005):1297-1302. |
入库方式： OAI收割
来源：大连化学物理研究所
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