Pressure fictitious partial

Stein introduced the concept of fictitious partial pressures of the elements to eliminate the V/RT term (S4). The fictitious pressure p is the partial pressure each element would exert if it were present as a monatomic gas thus, we have the following set of three conservation equations. 

We can now use the five equilibrium equations, the two ratios of fictitious partial pressures, and the total pressure equation to solve for the equilibrium among the eight species at any given temperature. The initial flame temperature assumed is 3000°K. At this temperature the values of the equilibrium constants (N2) are ... 

Due to dissociation, the four moles of reactants yield more than the four moles of CO2 and H20 which result at low temperatures. Since the partial pressures are numerically equivalent to mole fractions of the various species, the true number of moles of products is obtained by dividing the mole number of any atom introduced as a reactant by its fictitious partial pressure. In theory, therefore, nc/pc = nn/p = n0/Pb... 

In summary, the calculation of pressure drops by the Lockhart-Marti-nelli method appears to be reasonably useful only for the turbulent-turbulent regions. Although it can be applied to all flow patterns, accuracy of prediction will be poor for other cases. Perhaps it is best considered as a partial correlation which requires modification in individual cases to achieve good accuracy. Certainly there seems to be no clear reason why there should be a simple general relationship between the two-phase frictional pressure-drop and fictitious single-phase drops. As already pointed out, at the same value of X in the same system, it is possible to have two different flow patterns with two-phase pressure-drops which differ by over 100%. The Loekhart-Martinelli correlation is a rather gross smoothing of the actual relationships. 

The Chreedimensional diagram obtained could serve both theoretical and technological computations concerning oxygen enrichment of air on K-clinoptilolite. It is a basis for determining of adsorption isobars, fictitious and real isotherms, as well as thermodynamic data for adsorption from binary C /Nj mixtures. Freundlich and Henry constants (for the real adsorption isotherms) correlated with the equilibrium concentration are useful for computation of the amounts adsorbed at arbitrary partial pressures and equilibrium concentrations. 

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