Pressure Fermi-Dirac statistics

Fig. 5.15 Reduced pressure vs reduced density for particles obeying Fermi-Dirac statistics, Bose-Einstein statistics, or the ideal gas law...

If we assume that not more than one solute molecule can occupy a site at one time, the solute molecules will obey statistics of the Fermi-Dirac type an ensemble of solute particles obeying this principle is termed a spatial Fermi gas [54], The fundamental thermodynamic relations, such as the equilibrium distribution function, the free energy, the pressure dependence of the concentration of solute in contact with the ideal-gas phase, and the equation of state have been established in closed form for a spatial Fermi gas of identical as well as different particles [54]. Some of the results shall be review here. 

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