Fugacity Coefficient of Pure Vapor Species using Cubic EOS

This program allows the plotting of Compressibility Factor and Fugacity Coefficient vs. Pressure for a Pure Vapor Species using the four mostly used EOS: van der Waals (vdW), Redlich-Kwong (RK), Soave-Redlich-Kwong (SRK), and Peng-Robinson (PR). The system temperature is fixed, while the pressur varies. Each of the cubic eos has its own function file. The main file is "pure_species_fugacity.m". Please read the documentation to be guided accordingly.