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题名: Thermodynamic investigation of the azeotropic system - The binary system of (water plus cyclohexane)
作者: Nan, ZD;  Jiao, QZ;  Tan, ZC;  Sun, LX
关键词: azeotropic system ;  water ;  cyclohexane ;  heat capacity ;  adiabatic calorimetry
刊名: THERMOCHIMICA ACTA
发表日期: 2003-12-05
DOI: 10.1016/S0040-6031(03)00266-1
卷: 407, 期:1-2, 页:41-48
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical ;  Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: The molar heat capacities of the azeotropic system (0.30 mol water + 0.70 mol cyclohexane) were measured by an adiabatic calorimeter in temperature range of 78-320 K. The functions of the heat capacity with respect to thermodynamic temperature were established. The phase transition took place in temperature ranges of 184-190, 271-276 and 276-283 K corresponding to the solid-solid phase transition of cyclohexane, solid-liquid phase transition of water and solid-liquid phase transition of cyclohexane, respectively. The corresponding enthalpies and entropies of the phase transition were found to be 4.559 kj mol(-1), 24.510 +/- 0.065 J K-1 mol(-1); 2.576 kj mol(-1), 9.454 +/- 0.041 J K-1 mol(-1); and 2.040 kj mol(-1), 7.296 +/- 0.029 J K-1 mol(-1), respectively. The thermodynamic functions and the excess thermodynamic functions of the azeotrope were derived based on the relationships of the thermodynamic functions. (C) 2003 Elsevier B.V. All rights reserved.
关键词[WOS]: HEAT-CAPACITY ;  EXTRACTIVE DISTILLATION ;  ENTROPY ;  POINT ;  ETHER
语种: 英语
WOS记录号: WOS:000186833100006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138227
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Liaoning Normal Univ, Dept Chem, Dalian 116029, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China

Recommended Citation:
Nan, ZD,Jiao, QZ,Tan, ZC,et al. Thermodynamic investigation of the azeotropic system - The binary system of (water plus cyclohexane)[J]. THERMOCHIMICA ACTA,2003,407(1-2):41-48.
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