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Low-temperature heat capacities and standard molar enthalpy of formation of 4-(2-aminoethyl)-phenol (C8H11NO)
Di You-Ying1; Kong Yu-Xia1; Yang Wei-Wei1; Tan Zhi-Cheng2
Keyword4-(2-aminoethyl)-phenol Adiabatic Calorimetry Low-temperature Heat Capacity Standard Molar Enthalpy Of Formation
Source PublicationCHINESE PHYSICS B
2008-09-01
Volume17Issue:9Pages:3276-3283
Indexed BySCI
SubtypeArticle
Department15
Funding Project1504
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectPhysics, Multidisciplinary
WOS Research AreaPhysics
AbstractThis paper reports that low-temperature heat capacities of 4-(2-aminoethyl)-phenol (C8H11NO) are 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 the temperature was fitted by the least square 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 the interval of 5 K. The energy equivalent, epsilon(calor), of the oxygen-bomb combustion calorimeter has been determined from 0.68 g of NIST 39i benzoic acid to be epsilon(calor)=(14674.69 +/- 17.49)J.K-1. The constant-volume energy of combustion of the compound at T=298.15 K was measured by a precision oxygen-bomb combustion calorimeter to be Delta U-c=-(32374.25 +/- 12.93)J.g(-1). The standard molar enthalpy of combustion for the compound was calculated to be Delta H-c(m)circle minus = -(4445.47 +/- 1.77) kJ . mol(-1) according to the definition of enthalpy of combustion and other thermodynamic principles. Finally, the standard molar enthalpy of formation of the compound was derived to be Delta H-f(m)circle minus(C8H11 NO,s) = -(274.68 +/- 2.06) kJ . mol(-1), in accordance with Hess law.
Language英语
URL查看原文
WOS IDWOS:000259596000022
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Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/101433
Collection中国科学院大连化学物理研究所
Corresponding AuthorDi You-Ying
Affiliation1.Liaocheng Univ, Coll Chem & Chem Engn, Liaocheng 252059, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Di You-Ying,Kong Yu-Xia,Yang Wei-Wei,et al. Low-temperature heat capacities and standard molar enthalpy of formation of 4-(2-aminoethyl)-phenol (C8H11NO)[J]. CHINESE PHYSICS B,2008,17(9):3276-3283.
APA Di You-Ying,Kong Yu-Xia,Yang Wei-Wei,&Tan Zhi-Cheng.(2008).Low-temperature heat capacities and standard molar enthalpy of formation of 4-(2-aminoethyl)-phenol (C8H11NO).CHINESE PHYSICS B,17(9),3276-3283.
MLA Di You-Ying,et al."Low-temperature heat capacities and standard molar enthalpy of formation of 4-(2-aminoethyl)-phenol (C8H11NO)".CHINESE PHYSICS B 17.9(2008):3276-3283.
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