THERMODYNAMIC PROPERTIES AND MOLLIER CHART FOR HYDROGEN FROM 300°K TO 20,000°K

摘要

Consistent tables of thermodynamic properties at temperatures from 0° to 6000° K were compiled for 210 gaseous and condensed species in volving the elements with atomic numbers of 1 to 18 (i.e., hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine,. neon, sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chlorine, and argon). The tables give the following thermodynamic functions for the standard state: heat capacity at constant pressure Cp, sensible enthalpy HT - H8, entropy ST, sensible free energy -(FT - HQ), and HT the sum of sensible enthalpy and chemical energy at 0° K, as well as values of the enthalpy changes and the logarithms of the equilibrium constants. The latter two functions are given for the reactions of formation of the substances from a set of assigned reference elements ((ΔHT)f. and log10 Kf) and from these elements in their atomic gaseous state (ΔHT and log10K). The functions for most of the gases were generated from molecular data, whereas the functions of most of the condensed species are based on selected experimental data that were smoothed and made self-consistent.