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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
关键词4-(2-aminoethyl)-phenol Adiabatic Calorimetry Low-temperature Heat Capacity Standard Molar Enthalpy Of Formation
刊名CHINESE PHYSICS B
2008-09-01
17期:9页:3276-3283
收录类别SCI
文章类型Article
部门归属15
项目归属1504
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Physics, Multidisciplinary
研究领域[WOS]Physics
英文摘要This 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.
语种英语
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WOS记录号WOS:000259596000022
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被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/101433
专题中国科学院大连化学物理研究所
通讯作者Di You-Ying
作者单位1.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
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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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