you will be calculating a number of carbon dioxide co properties using

Question

You will be calculating a number of carbon dioxide (CO₂) properties using the van der Waals (VDW)
equation of state (EoS). For each calculation, compare your results with ones calculated using NIST's
thermophysical property estimator: (webbook.nist.gov/chemistry/fluid) by plotting the NIST data on
the same plot as the VDW calculations. A table of the CO₂ properties has been uploaded to Canvas.
Perform all calculations from -55 °C to the critical point of CO₂ using step sizes no larger than 10 °C.
Hint: Do NOT attempt to solve this problem by hand, use a computer tool (i.e., Matlab).
Calculate and plot the vapor pressure (in atm) as a function of temperature as calculated with the
VDW EOS.
On a P vs. V diagram, plot the specific volume of the liquid and vapor phase (i.e., the 2-phase
boundary). Use units of atm for pressure, L/mol for specific volume, and use a log-log plot.
Using the Clapeyron equation, calculate and plot the ASvap and AHvap as a function of
temperature using only data generated with the VDW EoS. Hint: numerically approximate
dpap/dr.
Which properties are accurately predicted by the VDW EoS? Which properties have the greatest
difference with the NIST data?