Calorimetric investigation of excess molar heat capacities for water plus ethylene glycol from T=273.15 to T=373.15 K
文献类型：期刊论文
| 作者 | Nan, ZD; Liu, BP; Tan, ZC |
| 刊名 | journal of chemical thermodynamics
 |
| 出版日期 | 2002-06-01 |
| 卷号 | 34期号:6页码:915-926 |
| 关键词 | an adiabatic calorimeter excess heat capacity binary system ethylene glycol aqueous solution |
| 英文摘要 | the molar excess heat capacity c-p(e),m of (1-x)h2o + xhoch(2)ch(2)oh has been measured in the temperature range from 273.15 k to 373.15 k at 5 k intervals. the c-p(,m)e values are negative and positive at all compositions between temperatures of (273.15, 283.15, 333.15 and 373.15) k, respectively. between t = 288.15 k and t = 328.15 k, c-p(e) in values are positive for the mixtures rich in water and negative for the mixtures rich in ethylene glycol with maxima at values of x about 0.07, 0.3 and with minima at values of x about 0.6. the curve of c-p(,m)e against x at t = 303.15 k is unusual in showing three maximum values at values of x at about 0.07, 0.3, and 0.4, respectively. the curves of c-p(,m)e against t show that the effects of t on c-p(,m)e at x 0.5372, and 0.7232 are more complex. the shapes of the curves of c-p(,m)e against x and their changes with temperature can be accounted for by the structure of the binary system. (c) 2002 elsevier science ltd. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | thermodynamics ; chemistry, physical |
| 研究领域[WOS] | thermodynamics ; chemistry |
| 关键词[WOS] | mixtures ; 1,2-propanediol ; 1,2-butanediol ; enthalpies ; ethanediol ; ethanol |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000178137300014 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/139185]  |
| 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.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China 2.Qufu Normal Univ, Dept Chem, Qufu 273165, Peoples R China 3.Changde Normal Coll, Dept Chem, Changde 415000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Nan, ZD,Liu, BP,Tan, ZC. Calorimetric investigation of excess molar heat capacities for water plus ethylene glycol from T=273.15 to T=373.15 K[J]. journal of chemical thermodynamics,2002,34(6):915-926. |
| APA | Nan, ZD,Liu, BP,&Tan, ZC.(2002).Calorimetric investigation of excess molar heat capacities for water plus ethylene glycol from T=273.15 to T=373.15 K.journal of chemical thermodynamics,34(6),915-926. |
| MLA | Nan, ZD,et al."Calorimetric investigation of excess molar heat capacities for water plus ethylene glycol from T=273.15 to T=373.15 K".journal of chemical thermodynamics 34.6(2002):915-926. |
入库方式： OAI收割
来源：大连化学物理研究所
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