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题名: Thermodynamic investigation of the binary system of ethanol plus benzene
作者: Nan, ZD;  Jiao, QZ;  Tan, ZC;  Sun, LX
关键词: heat capacity ;  ethanol ;  benzene ;  low temperature ;  adiabatic calorimetry
刊名: THERMOCHIMICA ACTA
发表日期: 2003-11-28
DOI: 10.1016/S0040-6031(03)00247-8
卷: 406, 期:1-2, 页:151-159
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 capacity of the binary system ethanol + benzene was measured by an adiabatic calorimeter in the temperature range from 80 to 320 K. The glass transition and phase transitions of the mixture were determined based on the curve of the heat capacity with respect to temperature. The glass transition occurred at 97.536K, the enthalpy and entropy of the glass transition were calculated to be 1.796 kJ mol(-1), 18.414 J mol(-1) K-1, respectively. The phase transitions took place in temperature ranges 115.875-128.400, 146.778-159.015 and 256.645-274.981 K corresponding to the solid-solid phase transition of ethanol, solid-liquid phase transition of ethanol and solid-liquid phase transition of benzene, respectively. The corresponding enthalpies and entropies of the phase transition were calculated to be -1.266 kJ mol(-1), -10.745 J K-1 mol(-1): 2.166 kJ mol(-1), 13.818 J K-1 mol(-1); 5.390 kJ mol(-1), 19.856 J K-1 mol(-1), respectively. The thermodynamic functions and the excess thermodynamic functions of the mixture relative to standard temperature 298.15 K were derived based on the relationships of the thermodynamic functions and the function of the measured heat capacity with respect to temperature. (C) 2003 Elsevier B.V. All rights reserved.
关键词[WOS]: EXTRACTIVE DISTILLATION ;  HEAT-CAPACITIES ;  CALORIMETER ;  ENTHALPY ;  ETHER
语种: 英语
WOS记录号: WOS:000186374000015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138225
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 binary system of ethanol plus benzene[J]. THERMOCHIMICA ACTA,2003,406(1-2):151-159.
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