Contents - Index



The FUGACITY function returns the fugacity of the specified pure fluid for the given conditions. Fugacity is defined by the following relation:




f  is fugacity (same units as pressure)

P is pressure

v is the specific volume of the fluid

T is the absolute temperature

R is the gas constant.


For an ideal gas fluid, f is identical to P.  


The FUGACITY function will accept any appropriate set of inputs.  Fugacity is particularly useful for some types of phase equilibrium calculations.



    f=FUGACITY (R$,T=100,P=101.3)



Return to Thermophysical Functions