The workbook uses the Coolprop Excel add-in to compute thermophysical properties of a baker’s dozen of fluids. The user can then plot the saturated liquid and saturated vapor lines in one of four common formats.  These include: (1) Temperature – entropy, (2) Pressure – volume, (3) Temperature – volume and (4) enthalpy – entropy (Mollier diagram). Using the model of Coolprop’s TestExcel.xlsm, this new edition includes a property calculator that uses units and nomenclature more frequently encountered in the study of engineering thermodynamics (kPa, kJ, specific volume, etc.).  If you are analyzing a thermodynamic process or even a complete cycle, you can save the data returned by the property calculator and add it as another data series to the existing plot.