Lewis 1901 fugacity f: mu = mu* + RT ln(f/f*); ideal-gas f = P, real-gas f != P (compressibility); fugacity-coefficient phi(T,P) extracted from EOS.
Lewis 1901 fugacity f: mu = mu* + RT ln(f/f*); ideal-gas f = P, real-gas f != P (compressibility); fugacity-coefficient phi(T,P) extracted from EOS.