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Thermodynamics of equilibria

We shall see later (Frames 35, 37, 38, 39) that G and G° can, under certain circumstances, be replaced by chemical potentials, fj, and and that these relationships and that of (20.12) are really key equations when considering the thermodynamics of equilibria between phases (Frame 35). [Pg.62]

Thermodynamics of equilibria between water vapor and saline hydrates non-stoichiometric hydrates... [Pg.204]

Prausnitz, J. M., "Molecular Thermodynamics of Fluid-Phase Equilibria," Prentice-Hall, Englewood Cliffs, N.J. (1969)... [Pg.38]

PRAUSNITZ J.M. MOLECULAR THERMODYNAMICS OF FLUID PHASE EQUILIBRIA, PRENTICE-HALL. ENGLEWOOD CLIFFS. N.J.I19691. [Pg.266]

A quantitative solution to an equilibrium problem may give an answer that does not agree with the value measured experimentally. This result occurs when the equilibrium constant based on concentrations is matrix-dependent. The true, thermodynamic equilibrium constant is based on the activities, a, of the reactants and products. A species activity is related to its molar concentration by an activity coefficient, where a = Yi[ ] Activity coefficients often can be calculated, making possible a more rigorous treatment of equilibria. [Pg.176]

In Secs. 4.3 and 4.4 we discussed the thermodynamics of the crystal -> Uquid transition. This and other famiUar phase equilibria are examples of what are called first-order transitions. There are other less familiar but also well-known... [Pg.244]

Equation (4-8) is the fundamental property relation for singlephase PVT systems, from which all other equations connecting properties of such systems are derived. The quantity is called the chemical potential of ecies i, and it plays a vital role in the thermodynamics of phase ana chemical equilibria. [Pg.515]

FIG. 22-20 Six classes of binary liquid-fluid phase diagrams (Frausnitz et at. Molecular Thermodynamics of Fluid-Phase Equilibria, 1986. Reptinted hy peimission ofFrentice-Hall, Inc.). [Pg.2002]

Prausnitz, J.M., Lichtenthaler, R.N. and Gomes de Azevedo, E., Molecular Thermodynamics of Fluid-Phase Equilibria. Prentice Hall, Upper Sadie River, NJ, 1999. [Pg.73]

The importance of the Gibbs free energy and the chemical potential is very great in chemical thermodynamics. Any thermodynamic discussion of chemical equilibria involves the properties of these quantities. It is therefore worthwhile considering the derivation of equation 20.180 in some detail, since it forms a prime link between the thermodynamics of a reaction (AG and AG ) and its chemistry. [Pg.1231]

Current use of statistical thermodynamics implies that the adsorption system can be effectively separated into the gas phase and the adsorbed phase, which means that the partition function of motions normal to the surface can be represented with sufficient accuracy by that of oscillators confined to the surface. This becomes less valid, the shorter is the mean adsorption time of adatoms, i.e. the higher is the desorption temperature. Thus, near the end of the desorption experiment, especially with high heating rates, another treatment of equilibria should be used, dealing with the whole system as a single phase, the adsorbent being a boundary. This is the approach of the gas-surface virial expansion of adsorption isotherms (51, 53) or of some more general treatment of this kind. [Pg.350]

THERMODYNAMICS OF FLUID-PHASE EQUILIBRIA AT HIGH PRESSURES... [Pg.139]


See other pages where Thermodynamics of equilibria is mentioned: [Pg.506]    [Pg.509]    [Pg.1078]    [Pg.506]    [Pg.509]    [Pg.1078]    [Pg.532]    [Pg.693]    [Pg.1294]    [Pg.307]    [Pg.161]    [Pg.1139]    [Pg.140]    [Pg.155]   
See also in sourсe #XX -- [ Pg.114 ]




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