ChIN简介页:CODATA Key Values for Thermodynamics (CODATA推荐的主要化学物质热力学标准数据值)
首  页 | ChemDB Portal | 帮  助 | 论  坛 |  关于本站 | 动态网页

 

CODATA Key Values for Thermodynamics (CODATA推荐的主要化学物质热力学标准数据值)

【URL】 http://www.codata.org/databases/key1.html

【收费情况】 免费

【简介】
     The Committee on Data for Science and Technology (CODATA) has conducted a project to establish internationally agreed values for the thermodynamic properties of key chemical substances. This table presents the final results of the project. Use of these recommended, internally consistent values is encouraged in the analysis of thermodynamic measurements, data reduction, and preparation of other thermodynamic tables. The table includes the standard enthalpy of formation at 298.15 K, the entropy at 298.15 K, and the quantity H ° (298.15 K)-H °(0). A value of 0 in theDfH ° column for an element indicates the reference state for that element. The standard state pressure is 100000 Pa (1 bar). See the reference for information on the dependence of gas-phase entropy on the choice of standard state pressure.

REFERENCE

Cox, J. D., Wagman, D. D., and Medvedev, V. A., CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1989.

【相关链接】
  获取科学数据和信息有关的原则、国际活动
  国际科学技术数据组织CODATA
  CODATA推荐的基本物理(化学)常数


Summary by 李晓霞 on 2002-04-03

Last updated by 李晓霞 on 2002-07-04

访问统计 | 软 件 | 论文专著 | 请留言 请在800x600分辨率以上,用IE4.0以上版本浏览
版权所有 © 1998 - 2015 中国科学院过程工程研究所
       高性能计算与化学信息学课题组
       中国·北京·京ICP备05058588