Equations of State part 5: Peng-Robinson

Please note there is an error in the Peng-Robinson equations shown in the video, please refer to the equations shown in the spreadsheet linked below for the correct versions.
Screencast showing the equation for the Peng-Robinson equation of state, including calculations, a plot of pressure versus molar volume and the prediction of vapour-liquid coexistence.
Presented by Dr Daniel Belton, University Teaching Fellow, University of Huddersfield.
The spreadsheet used in this video can be downloaded at: drive.google.com/open?id=1Nb9...

[@SLQ910]

Thank you very much. Could you explain equations of state for polymer and gases? Like Sanchez Lacombe

[@flyingchipmunk10]

Thanks for your kindness, Your excel file was very helpful. From 2022

[@danialabd4108]

I would like to know the ways to solve Bing Robinson equation, I want your help pls

[@andrelopes4136]

Show that A B2v(T) = B- RT3/2 and for the Redlich-Kwong equation.?

[@mdmuntasiralam774]

Thank you. Can the P-R equation be used in the case of refrigerant-lubricant mixtures, for example, R744 (CO2) - PAG oil mixtures?

[@ChemEngTutor]

It looks like it might be possible but that you would need good data for binary interaction parameters. A quick search for 'Polyalkylene Glycol CO2 Peng Robinson' yielded a number of promising results, including: Rayer, A. V., Henni, A., & Tontiwachwuthikul, P. (2012). High pressure physical solubility of carbon dioxide (CO2) in mixed polyethylene glycol dimethyl ethers (Genosorb 1753). The Canadian Journal of Chemical Engineering, 90(3), 576-583. onlinelibrary.wiley.com/doi/pdf/10.1002/cjce.20615?casa_token=3hhOfaSFMGAAAAAA:mBgo6ntRhnP5rBjq_SMdzUgy0FhY8GyI3JgioFXqck2SSEGXJYFbDSBeLWBOjnSGi71FxJRCqdie2A and Tsuji, T., Tanaka, S., Hiaki, T., & Saito, R. (2004). Measurements of bubble point pressure for CO2+ decane and CO2+ lubricating oil. Fluid Phase Equilibria, 219(1), 87-92. www.sciencedirect.com/science/article/pii/S0378381204000809?casa_token=62QH9ncjB1sAAAAA:FoMqpZypQz4LkDO9nHZ74grVH4HrMl2OAvQ3BySU65zdCkPlVWosYb7CBqivwdT1fCTe9SkU0g

[@coral-egm1818]

Thanks

[@fungrajebasumatary6286]

What alpha stands for

[@leventali5491]

Is temperature dependence of the attractive term in PR EoS

[@reubenattah7569]

Thanks for your video but from thermodynamic textbooks, your formular for a(Tc)is actually wrong, there is no need for alpha in a(Tc) except if my textbook(Sandler) is wrong.

[@gallicrow]

Yes, I agree with that - only one alpha!

[@taofiknassan2016]

No matter it's just a typo but the calculations are right.

[@coral-egm1818]

Thanks