Gibbs adsorption isotherm
Gibbs adsorption isotherm
Gibbs adsorption isotherm
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Langmuir films<br />
G: gas phase<br />
L1: liquid expanded phase<br />
(e.g. saturated unbranched<br />
carbon chains: a 0 ≈30-50Å 2 )<br />
L2: liquid condensed phase<br />
(stronger molecular interactions,<br />
lower compressibilty<br />
S: solid (e.g. alcohols, esters:<br />
a 0 ≈19 Å 2 )<br />
G->L1: typical gas liquid transiton<br />
like in 3D<br />
L1->L2: transition not finally explained.