Gas Solubility variation with temperature

[Camarena]

I am studying the solubility of different gases in alcohols , I have gather some data from bibliography and I have verified that with some gases like H2 its solubility in alcohols increase with increasing temperature, while the solubility of gases generally decreases with increasing temperature. Could anyone give a chemical reason for these behaviour?.
Thanks in advance to everybody

 

[25362]

A similar subject has been treated in thread407-60435.
The microscopic underlying factors, unknown to me, may be related to the electron energies of the atoms and the vibration (bond) energies of the molecules. The macroscopic explanations are more related to Le Chatelier's rule. For a superficial explanation see

http://antoine.frostburg.edu/chem/senese/101/solutions/faq/temperature-gas-solubility.shtml

 

[mirchee]

I would recommend studying "Molecular Thermodynamics of Fluid Phase Equilibria" by Prausnitz, Lichtenthaler and Azevedo (Prentice-Hall, 1999). The relevant Section is 10.4, starting at Page 596.

Prausnitz et al also have an excellent discussion regarding estimation of gas solubility in various solvents.