中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Low Temperature Heat Capacities and Standard Molar Enthalpy of Formation of 2-Pyrazinecarboxylic Acid (C5H4N2O2)(s)
作者: Kong, Yu-Xia1;  Di, You-Ying1;  Yang, Wei-Wei1;  Gao, Sheng-Li2;  Tan, Zhi-Cheng3
关键词: 2-pyrazinecarboxylic acid ;  adiabatic calorimetry ;  low temperature heat capacity ;  rotating-bomb combustion calorimeter ;  standard molar enthalpy of formation
刊名: ACTA CHIMICA SLOVENICA
发表日期: 2010
卷: 57, 期:2, 页:370-375
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
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.
关键词[WOS]: MAGNETIC-PROPERTIES ;  COMPLEX
语种: 英语
WOS记录号: WOS:000279939100014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141821
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


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

Recommended Citation:
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.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Kong, Yu-Xia]'s Articles
 [Di, You-Ying]'s Articles
 [Yang, Wei-Wei]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Kong, Yu-Xia]‘s Articles
 [Di, You-Ying]‘s Articles
 [Yang, Wei-Wei]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace