Low Temperature Heat Capacities and Standard Molar Enthalpy of Formation of 2-Pyrazinecarboxylic Acid (C5H4N2O2)(s)
文献类型：期刊论文
| 作者 | Kong, Yu-Xia1; Di, You-Ying1; Yang, Wei-Wei1; Gao, Sheng-Li2; Tan, Zhi-Cheng3 |
| 刊名 | acta chimica slovenica
 |
| 出版日期 | 2010 |
| 卷号 | 57期号:2页码:370-375 |
| 关键词 | 2-pyrazinecarboxylic acid adiabatic calorimetry low temperature heat capacity rotating-bomb combustion calorimeter standard molar enthalpy of formation |
| 英文摘要 | low-temperature heat capacities of 2-pyrazinecarboxylic acid (c5h4n2o2)(s) were measured by a precision automated adiabatic calorimeter over the temperature range from 78 to 400 k. a polynomial equation of heat capacities as a function of temperature was fitted by least squares method. based on the fitted polynomial, the smoothed heat capacities and thermodynamic functions of the compound relative to the standard reference temperature 298.15 k were calculated and tabulated at 10 k intervals. the constant-volume energy of combustion of the compound at t = 298.15 k was measured by a precision rotating-bomb combustion calorimeter to be delta u-c = -(17839.40 +/- 7.40) j g(-1). the standard molar enthalpy of combustion of the compound was determined to be delta h-c(m)0 = -( 2211.39 +/- 0.92) kj mol(-1), according to the definition of combustion enthalpy. finally, the standard molar enthalpy of formation of the compound was calculated to be delta h-f(m)0 = -(327.82 +/- 1.13) kj mol(-1) in accordance with hess law. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, multidisciplinary |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | magnetic-properties ; complex |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000279939100014 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141821]  |
| 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.Liaocheng Univ, Coll Chem & Chem Engn, Liaocheng 252059, Peoples R China 2.NW Univ Xian, Dept Chem, Xian 710069, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kong, Yu-Xia,Di, You-Ying,Yang, Wei-Wei,et al. Low Temperature Heat Capacities and Standard Molar Enthalpy of Formation of 2-Pyrazinecarboxylic Acid (C5H4N2O2)(s)[J]. acta chimica slovenica,2010,57(2):370-375. |
| APA | Kong, Yu-Xia,Di, You-Ying,Yang, Wei-Wei,Gao, Sheng-Li,&Tan, Zhi-Cheng.(2010).Low Temperature Heat Capacities and Standard Molar Enthalpy of Formation of 2-Pyrazinecarboxylic Acid (C5H4N2O2)(s).acta chimica slovenica,57(2),370-375. |
| MLA | Kong, Yu-Xia,et al."Low Temperature Heat Capacities and Standard Molar Enthalpy of Formation of 2-Pyrazinecarboxylic Acid (C5H4N2O2)(s)".acta chimica slovenica 57.2(2010):370-375. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。