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** Clausius-Clapeyron equation and **

** Clausius-Clapeyron equation, equilibrium phase **

** Condensation condensed phase equilibria **

** Gases Clausius-Clapeyron equation **

The Clausius-Clapeyron equation" is an integrated version of the Clapeyron equation that applies to equilibrium between an ideal gas vapor phase and a condensed phase, with the conditions that the volume of the [Pg.8]

Gas and condensed phase equilibrium the Clausius-Clapeyron equation [Pg.234]

The Clausius-CIapeyron equation (5.24) applies to phase equilibrium in singlecomponent systems where one phase is an ideal gas thus, the expression can describe phase equilibrium at evaporation and sublimation. Phase equilibrium between condensed phases is described by the Clapeyron equations (5.19) and (5.21), respectively. [Pg.167]

The extent of surface coverage (or simply surface coverage), reached as a result of adsorption, is usually denoted as 0. It is a ratio between adsorbed particles number (Nadi) and the number of adsorption sites available at a surface (usually denoted as active sites - Nsurf). 0 = Nads/ surf The chemical equilibrium between adsorbed species and gas phase particles is reached when chemical potentials of adsorbate particles in both phases are equal (the rates of adsorption and desorption are equal) and it is characterized by constant value of surface coverage 9. The temperature dependence of the gas pressurep required for equilibrium between the adsorption and desorption can be calculated from the Clausius-Clapeyron equation [6], Neglecting the volume of the condensed surface phase, this relation becomes [Pg.136]

If the characteristic time of relaxation tends to zero, the transition occurs instantaneously in a sharply defined front. We denote the velocity of the front by U and the velocity of the mixture by u. The state of the mixture is characterized by pressure p, temperature T and liquid mass fraction fp. The gas and the vapour are considered perfect so they obey Dalton s law. For simplicity we shall from now on refer to the supersaturated vapour state and to the state of liquid-vapour equilibrium as state 1 and state 2, respectively. It is dear there exists no liquid phase in state 1, fp = 0, and the vapour mass fraction f is equal to the total mass fraction of the condensable component of the mixture. The vapour pressure p 2 state 2 has to satisfy the Clausius-Clapeyron equation (2). The laws of conservation of mass, momentum and energy are, applied to the condensation discontinuity [Pg.198]

** Clausius-Clapeyron equation and **

** Clausius-Clapeyron equation, equilibrium phase **

** Condensation condensed phase equilibria **

** Gases Clausius-Clapeyron equation **

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