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Low-temperature heat capacity of the azeotropic mixture composed of water plus ethanol plus benzene
Nan, ZD; Tan, ZC
关键词Heat Capacity Water Ethanol Benzene Low Temperature Adiabatic Calorimetry
刊名THERMOCHIMICA ACTA
2004-09-10
DOI10.1016/j.tca.2004.03.004
419期:1-2页:275-281
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
关键词[WOS]THERMODYNAMIC PROPERTIES ; EXTRACTIVE DISTILLATION ; BINARY-SYSTEM ; FREE-ENERGIES ; CALORIMETER ; ENTROPIES ; SCALE ; ETHER
英文摘要Molar heat capacity of the azeotropic mixture composed of water, ethanol, and benzene was measured by an adiabatic calorimeter 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 102.850 K. The phase transitions took place in temperature ranges 140-155 K and 265-280 K corresponding to the solid-liquid phase transitions of ethanol, water and benzene, respectively. The corresponding enthalpies and entropies of the phase transition were calculated to be 0.4157 kJ mol(-1), 2.824 J K-1 mol(-1); 1.293 kJ mol(-1), 4.692 J K-1 mol(-1); 4.876 kJ mol(-1), 17.67 J K-1 mol(-1); respectively. The thermodynamic functions and the excess thermodynamic functions of the mixture relative to 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) 2004 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000223762400037
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139461
专题中国科学院大连化学物理研究所
作者单位1.Qufu Normal Univ, Dept Chem, Qufu 273165, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
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Nan, ZD,Tan, ZC. Low-temperature heat capacity of the azeotropic mixture composed of water plus ethanol plus benzene[J]. THERMOCHIMICA ACTA,2004,419(1-2):275-281.
APA Nan, ZD,&Tan, ZC.(2004).Low-temperature heat capacity of the azeotropic mixture composed of water plus ethanol plus benzene.THERMOCHIMICA ACTA,419(1-2),275-281.
MLA Nan, ZD,et al."Low-temperature heat capacity of the azeotropic mixture composed of water plus ethanol plus benzene".THERMOCHIMICA ACTA 419.1-2(2004):275-281.
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