Virial Equation | Physical Chemistry I | 016

Physical Chemistry lecture introducing the Virial Equation. This is a general framework for treating real gases that deviate from the ideal gas law. A virial expansion is carried out on the Van der Waals equation of state and the Boyle Temperature is derived.

[@Eclyptical]

You explained it way better than my professor whos salary my tuition is paying 😂

[@umumuntuksemua9831]

This helps so much professor, greetings from Indonesia!

[@cardempire360]

You are DEMIGOD to me,just wen I needed an explanation for dis ,God bless ur mom

[@kirtichandrakomarraju5164]

Why don't chemists add more powers of P and V? The bigger the odd polynomial, the more accurately we'll approach the actual experimentally obtained curve.

[@ProfessorDerricotte]

In theory this is correct, however the equations become far more complex when expanding to higher terms. Also these types of calculations are typically run on a computer so computational cost becomes a factor. You always want to balance accuracy with computational cost. Usually truncation at one of the first few terms gives you a nice trade-off.

[@kirtichandrakomarraju5164]

@@ProfessorDerricotte Thank you

[@conorbeezhold4804]

Pretty sure this is a dumb question, but why is the volume expansion inverted while the pressure expansion isn’t?

[@NarutoUzumaki-gf6wg]

Thanks Sir for your explanation.

[@muhammedsaeed3137]

It's would better to have examples also, problems to see how can we use the equations, thanks 🌹🌹

[@ProfessorDerricotte]

Noted. I work through examples with my students in class so these videos are meant to be more topical. Next year when I have more time I may add more videos doing problems.

[@chemifi1686]

How can you write Z= PV/RT in expression of Z ,V IS volume of real gas,so Z must be P(V-b)/RT. correct me if I am missing something . Thankyou

[@robertvarner9519]

Great explanation!

[@KB-ok5ob]

Ty, I'm here bcuz i need supplementation for my thermodynamics class. silly question but we don't use the v bar notation. OR i haven't seen it as a notation in my book. Could you let me know what it stands for? I do see my book using B prime B' etc. I'm using intro to thermodynamics by van ness et al. Im going to take pchem in the fall

[@charlesdarwin6142]

V bar is the molar volume. V bar= V/n

[@Xkwizit_P]

V bar is molar volume. Volume per mole of gas...

[@sirchomsky784]

Thanks for the explanation, sir