Plot the calculated values (lines) on a P − v diagram. On the same figure, plot the NIST data (points). Make sure that your plot captures the isotherms inside and outside of the vapor-liquid coexistence region.
Compare the accuracy of the calculated results and the NIST data. Evaluate the predictive accuracy of the VDW EoS and the PR EoS by calculating the relative (%) error select molar volumes for each isotherm calculated using both models. Present your calculated relative error values in a formatted table.

 

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The Van der Waals equation of state is given by a = b = 27 (RTC)² 64 Pc RTC 8Pc a = 0.45724 R²T2/Pc b = 0.07780RTc/Pc. a(T) = [1 + x (1-√T/Tc)]* K= 0.37464 +1.54226w P = P = RT v-b The Peng-Robinson equation of state is given by RT aa (T) v-b v(v +b) + b(v - b) - a v² 0.26992w² (w= acentric factor) The Van der Waals equation of state is given by a = b = 27 (RTC)² 64 Pc RTC 8Pc a = 0.45724 R²T2/Pc b = 0.07780RTc/Pc. a(T) = [1 + x (1-√T/Tc)]* K= 0.37464 +1.54226w P = P = RT v-b The Peng-Robinson equation of state is given by RT aa (T) v-b v(v +b) + b(v - b) - a v² 0.26992w² (w= acentric factor)

Answer rating: 100% (QA)

To compare the accuracy of the Van der Waals VDW and PengRobinson PR equations of state EoS with NIS... View the full answer