Heat capacities and derived thermodynamic functions of 1-hexanol, 1-heptanol, 1-octanol, and 1-decanol between 5 K and 390 K

被引：48

作者：

van Miltenburg, JC ^{[1
]}

Gabrielová, H ^{[1
]}

Ruzicka, K ^{[1
]}

机构：

[1] Univ Utrecht, Chem Thermodynam Grp, Debye Inst, NL-3584 CH Utrecht, Netherlands

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2003年 / 48卷 / 05期

关键词：

D O I：

10.1021/je0340856

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Molar heat capacities of the linear alcohols I-hexanol (C6H14O), 1-heptanol (C7H16O), 1-octanol (C8H18O), and 1-decanol (C10H22O) were measured from 5 K to 390 K. The derived thermodynamic functions S-abs,S-m(T) and H-m(T) - H-m(0) were calculated. Including earlier published data, a correlation for the heat capacity of the liquid 1-alcohols with the carbon number n in the chain ranging between 6 and 22 was fitted. The molar heat capacities of the liquid alcohols can be described by C-p,C-1(n,T)/J.K-1.mol(-1) = -3163.5 + 21.0156n + 0.04223nT + 9.89055T + 322705.7/T - 0.0093225T(2), with the mean absolute percentage deviation being 0.22%. The correlation for the absolute entropy is Sdegrees(360 K,n) = (111.86 + 38.613n) J.K-1.mol(-1).

引用

页码：1323 / 1331

页数：9

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