ISL OpenIR  > 青海盐湖研究所知识仓储
Heat capacities and thermodynamic properties of a H2O+Li2B4O7 solution in the temperature range from 80 to 356 K
Zhang, Zhi-Heng; Yin, Guo-Yin; Tan, Zhi-Cheng; Yao, Yan; Sun, Li-Xian
2006-10-01
Source PublicationJOURNAL OF SOLUTION CHEMISTRY
Volume35Issue:10Pages:1347-1355
SubtypeArticle
AbstractThe molar heat capacities of an aqueous Li2B4O7 solution were measured with a precision automated adiabatic calorimeter in the temperature range from 80 to 356 K at a concentration of 0.3492 mol . kg(-1). The occurrence of a phase transition was determined based on the changes in the curve of the heat capacity with temperature. A phase transition was observed at 271.72 K corresponding to the solid-liquid phase transition; the enthalpy and entropy of the phase transition were evaluated to be Delta H-m = 4.110 kJ . mol(-1) and Delta S-m = 15.13 J . K-1 . mol(-1), respectively. Using polynomial equations and the thermodynamic relationship, the thermodynamic functions [H-T-H-298.15] and [S-T-S-298.15] of the aqueous Li2B4O7 solution relative to 298.15 K were calculated in the temperature range 80 to 355 K at intervals of 5 K. Values of the relative apparent molar heat capacities of the aqueous Li2B4O7 solution, C-p,C-phi, were calculated at every 5 K in the temperature range from 80 to 355 K from the experimental heat capacities of the solution and the heat capacities of pure water.
KeywordHeat Capacity Aqueous Li2b4o7 Adiabatic Calorimetry Relative Apparent Molar Heat Capacity Thermodynamic Function
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordTHERMOCHEMISTRY ; REPRESENTATION ; CALORIMETER ; CHLORIDE ; MODEL
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000241455000002
Citation statistics
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/5779
Collection青海盐湖研究所知识仓储
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100864, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Zhi-Heng,Yin, Guo-Yin,Tan, Zhi-Cheng,et al. Heat capacities and thermodynamic properties of a H2O+Li2B4O7 solution in the temperature range from 80 to 356 K[J]. JOURNAL OF SOLUTION CHEMISTRY,2006,35(10):1347-1355.
APA Zhang, Zhi-Heng,Yin, Guo-Yin,Tan, Zhi-Cheng,Yao, Yan,&Sun, Li-Xian.(2006).Heat capacities and thermodynamic properties of a H2O+Li2B4O7 solution in the temperature range from 80 to 356 K.JOURNAL OF SOLUTION CHEMISTRY,35(10),1347-1355.
MLA Zhang, Zhi-Heng,et al."Heat capacities and thermodynamic properties of a H2O+Li2B4O7 solution in the temperature range from 80 to 356 K".JOURNAL OF SOLUTION CHEMISTRY 35.10(2006):1347-1355.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang, Zhi-Heng]'s Articles
[Yin, Guo-Yin]'s Articles
[Tan, Zhi-Cheng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, Zhi-Heng]'s Articles
[Yin, Guo-Yin]'s Articles
[Tan, Zhi-Cheng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, Zhi-Heng]'s Articles
[Yin, Guo-Yin]'s Articles
[Tan, Zhi-Cheng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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