Gibbs adsoiption Equation

The Gibbs Adsoiption Equation.—The surface free energy F is the sum of the contributions of the various constituents, i.e., nlui + nSjuJ + , Ccf. equation (26.6)3, and of a quantity depending upon the area of the surface. The latter is equal to ys, where s is the total surface area hence. 

Fig. 2. Adsorption isotherms in all four model systems. F is the Gibbs excess adsoiption. The pressures corresponding to the three configurations shown in Figure 3 are marked with arrows. The pressure is plotted relative to the vapor pressure of the model fluid, as determined by independent Gibbs Ensemble Monte Carlo simulations. Chemical potentials were converted to pressures using a virial equation of state.

The Gibbs equation Eq, (17,1-1)] forms the basis of adsoiptive bubble separations of molecular and ionic species ... 

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See also in sourсe #XX -- [ ]

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