On the conversion of thermodynamic properties to the basis of the International Temperature Scale of 1990

被引：31

作者：

Weir, RD ^{[1
]}

Goldberg, RN ^{[1
]}

机构：

[1] NATL INST STAND & TECHNOL, GAITHERSBURG, MD 20899 USA

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 1996年 / 28卷 / 03期

关键词：

D O I：

10.1006/jcht.1996.0026

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The basis and application of the Douglas equations for the adjustment and calculation of differences in thermodynamic properties due to a change in the temperature scale are reviewed. When higher-order terms in the general Douglas equations are discarded, the simplified Douglas equations are obtained. These simplified equations together with the recently revised set of differences between values of temperatures on the International Temperature Scale of 1990 (ITS-90) and the corresponding values on the International Practical Temperature Scale of 1968 (IPTS-68) for 903.765 K < T-90 < 1337.33 K have been used to calculate approximate differences in thermodynamic properties for synthetic sapphire (alpha-Al2O3). Tables of differences (T-90-T-68)/K and the derivatives d(T-90-T-68)/dT are given as a function of T-68/K. (C) 1996 Academic Press Limited

引用

页码：261 / 276

页数：16

共 22 条

[1] THERMODYNAMIC PROPERTIES OF SYNTHETIC SAPPHIRE (ALPHA-AL2O3), STANDARD REFERENCE MATERIAL 720 AND THE EFFECT OF TEMPERATURE-SCALE DIFFERENCES ON THERMODYNAMIC PROPERTIES [J].