Every so often i come across brilliant channels like this one. Love the balance between technical jargon and straight forward explanation of otherwise daunting equations! Cheers and goodluck!
You have no right to be able to explain this so aproachably! If there is one thing I know it’s that statistical mechanics is supposed to be a wall of inscrutable calculation! ❤ You definately should have more subscribers
I have a PhD in physics and don't think I've ever encountered the Van der Waals equation of state. This was a wonderful explanation of both the history and the physics. Thank you!
this is great! I‘ve always wondered about the VdW equation more and also phase diagrams cuz I always thought there‘s gotta be more to it and your 2 part lecture really gave me some new insights and resparked my interest
This and a previous video were a nice dive back into thermodynmaics after not needing to use them at this level for nearly a decade. It reminded me all that I had forgotten. Thank you.
I have actually used Van Der Walls in a real life engineering program. I wrote a simulator for refrigerants, using the modified Benedict -Webb -Rubin equation. To do this, you need a root finder. For the root finder , you need to start with a good guess . First guess-- ideal gas law That guess was used to root find on the VdW equation.. Then using that guess to find the mBWR values. It was very fast.
Great channel and video, I feel as if I have a gained a better understanding of thermodynamics and the ideal gas law in 20 minutes than I did in my first year chemistry class.
Excellent video! This actually really cleared some stuff up for me, as I'm giving a long presentation over this topic in a few days. Keep up the great content and explanations!
I wonder that myself? The only part that went another way for me is Einsteinium seems more logical before Newtonian. But everyone learns in their own way.
I think there's one more reason to study the Van der Waals EoS not enumerated by your presentation: F. Reif's book on _Statistical and Thermal Physics_ partitions the study of many-particle systems into four general approaches: classical, stat. mech., irreversible thermo., and kinetics. Looking at the strengths and draws of each, there's a general trade-off between accuracy and computational efficiency, sure, but also _generality._ Coming away from very hyper-attuned theories in the study of MPS, something that's really neat about the classical theories is that they are about as true _regardless_ of the actual physics behind them -- ideal gas law is going to give us good results if fluids are made of fuzzy billiards, solid ones, or some aetheric continuum. This sounds like it would be _less_ falsifiable granted, but they have their own place - specifically, it's nice for mathematical purposes, at the level of description, and you gotta be inhuman to not appreciate models with a paucity of assumptions behind them.
Finally I can understand what thermodynamic textbook is trying to saying. I think textbook should always explain the limitation of each model and some empirical data to visualisation.
As someone who has a scar from trying to cut down a tree with a hammer that hit home (listen, growing up before the internet was BORING and we weren't allowed to use an axe because they're dangerous)
>That's why we teach the Van der Waals Equation of State About to finish my chemistry degree, and we never saw it. Well, tbh my thermodynamics professor did suck
Good explanations could do without the jokes. A bully that bullies bullies is another name for a bully. The whole thing about friends and now this zen centrism of the pseudo pragmatic mind is just so pompous
Great video. But I would like to point out that Van der Waals won 1910 Nobel Prizes not in chemistry but in physics.
Every so often i come across brilliant channels like this one.
Love the balance between technical jargon and straight forward explanation of otherwise daunting equations! Cheers and goodluck!
You have no right to be able to explain this so aproachably! If there is one thing I know it’s that statistical mechanics is supposed to be a wall of inscrutable calculation! ❤
You definately should have more subscribers
I have a PhD in physics and don't think I've ever encountered the Van der Waals equation of state. This was a wonderful explanation of both the history and the physics. Thank you!
I've always wondered how much or little overlap my degree had with the physics folks
this is great! I‘ve always wondered about the VdW equation more and also phase diagrams cuz I always thought there‘s gotta be more to it and your 2 part lecture really gave me some new insights and resparked my interest
Your presentation, scripting, examples are pithy and worthy of the highest educational standards. I’ll watch these videos over and over.
This and a previous video were a nice dive back into thermodynmaics after not needing to use them at this level for nearly a decade. It reminded me all that I had forgotten. Thank you.
I have actually used Van Der Walls in a real life engineering program.
I wrote a simulator for refrigerants, using the modified Benedict -Webb -Rubin equation.
To do this, you need a root finder.
For the root finder , you need to start with a good guess .
First guess-- ideal gas law
That guess was used to root find on the VdW equation..
Then using that guess to find the mBWR values.
It was very fast.
Fascinating topic, beautifully treated.
Well done. ❤
Part 1 was delightful as well.
Thank yoy!
Cheers!
Great channel and video, I feel as if I have a gained a better understanding of thermodynamics and the ideal gas law in 20 minutes than I did in my first year chemistry class.
Excellent video! This actually really cleared some stuff up for me, as I'm giving a long presentation over this topic in a few days. Keep up the great content and explanations!
The philosophical question you bring up at the end seems like it might be really relevant for more than just students soon
How does this channel only have 16 subscribers
I wonder that myself? The only part that went another way for me is Einsteinium seems more logical before Newtonian. But everyone learns in their own way.
I don’t see how the Newtonian space could fully be appreciated without some scope of Einsteinium.
Thankyou. But I got shot down. P and Q is not the way I understood it. I follow numbers. So, here I set with another crazy remark.
@@brendawilliams8062 are you actually delusional
Great video!
Subscribed, nice one! Keep on working, your content is great 👍
Great video! More pls
Awesome explanation of van der waals model!
I think there's one more reason to study the Van der Waals EoS not enumerated by your presentation: F. Reif's book on _Statistical and Thermal Physics_ partitions the study of many-particle systems into four general approaches: classical, stat. mech., irreversible thermo., and kinetics. Looking at the strengths and draws of each, there's a general trade-off between accuracy and computational efficiency, sure, but also _generality._ Coming away from very hyper-attuned theories in the study of MPS, something that's really neat about the classical theories is that they are about as true _regardless_ of the actual physics behind them -- ideal gas law is going to give us good results if fluids are made of fuzzy billiards, solid ones, or some aetheric continuum. This sounds like it would be _less_ falsifiable granted, but they have their own place - specifically, it's nice for mathematical purposes, at the level of description, and you gotta be inhuman to not appreciate models with a paucity of assumptions behind them.
Love the footnote goblin notes:)
Finally I can understand what thermodynamic textbook is trying to saying. I think textbook should always explain the limitation of each model and some empirical data to visualisation.
nice channel
In the bit about the edge and adjacent layers, "layer" and the diagram imply a boundary. How do you define the boundaries?
...and after all...
you're my van der waal...
Can the line in the PV diagram ever dip below P=0? Or would that require T
I found this one pretty hard to follow, but so I feel like I can make it if I pause it and write a lot, this is normally spread over weeks isn't it?
Soneone said "All models are wrong. Some are useful."
footnote goblin is now my favourite thing
As someone who has a scar from trying to cut down a tree with a hammer that hit home
(listen, growing up before the internet was BORING and we weren't allowed to use an axe because they're dangerous)
>That's why we teach the Van der Waals Equation of State
About to finish my chemistry degree, and we never saw it. Well, tbh my thermodynamics professor did suck
I'm starting to think we didn't go to the same grade school.
Good explanations could do without the jokes. A bully that bullies bullies is another name for a bully. The whole thing about friends and now this zen centrism of the pseudo pragmatic mind is just so pompous