%0 Journal Article
%T Chemical Activities, a(H) and a(X), of Constituents in H2X Type Gas Molecules (X = O or S) at Arbitrary Degree of Dissociation
%J International Journal of Materials and Chemistry
%@ 2166-5354
%D 2012
%I 
%R 10.5923/j.ijmc.20120201.02
%X Chemical activities, a(X) and a(H), of constituents, X and H, in H2X type gas molecules (X = S or O) were evaluated as functions of temperature T and extent ¦Á of dissociation adapting a thermodynamic analysis procedure developed by Katsura for interpreting enhanced a(N) and a(H) in NH3 gas molecules with suppressed ¦Á by flowing. Present analysis results showed that both H2S and H2O gas molecules are chemically rather inert even at comparatively low ¦Á unlike nitrogen-family tri-hydrides XH3 that were proved to yield high chemical activity of each constituent in a state being away from thermodynamic equilibrium. The parameter ¦Á referring to the extent of dissociation of HnX type gas molecules appears to be a significant parameter in evaluating the chemical activities, a(X) and a(H), in the HnX gas molecules that are remained non-dissociated.
%K Thermodynamics
%K Chemical activity
%K Dissociation
%K Non-equilibrium state
%K H2S
%K H2O
%U http://article.sapub.org/10.5923.j.ijmc.20120201.02.html