Chemical potential

In the lower temperature range, where the Antoine equation is not valid, chemical potential is given as a quadratic function of temperature that is smoothly connected to the above expression.

H2(g) H2O(g) NH3(g)
N2(g) H2S(g) CH4(g)
C2H2(g) C2H4(g) C2H6(g)
H2O(l) N2(l) NH3(l)
H2S(l) CH4(l) C2H4(l)


H2O(s) N2(s) NH3(s)
H2S(s) CH4(s) C2H2(s)



[1] American Chemical Soc, American Institute of Physics, National Bureau of Standards, 1986: JANAF Thermochemical Tables (3rd. Edition), Part I, II. American Chemical Society,

2004-05-27 SUGIYAMA Ko-ichiro (sugiyama(at)