Great video. But I would like to point out that Van der Waals won 1910 Nobel Prizes not in chemistry but in physics.
@noone-ez6on
Жыл бұрын
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!
@georgesmith4768
Жыл бұрын
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
@scottcarr5014
Жыл бұрын
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!
@Mutantcy1992
Жыл бұрын
I've always wondered how much or little overlap my degree had with the physics folks
@lancediduck6278
Жыл бұрын
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.
@giansieger8687
Жыл бұрын
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
@jahbini
Жыл бұрын
Your presentation, scripting, examples are pithy and worthy of the highest educational standards. I’ll watch these videos over and over.
@Zweistein001
Жыл бұрын
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.
@loshosorus5343
Жыл бұрын
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.
@7177YT
Жыл бұрын
Fascinating topic, beautifully treated. Well done. ❤ Part 1 was delightful as well. Thank yoy! Cheers!
@orwxll8082
4 ай бұрын
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!
@명성현-s9m
Жыл бұрын
Thank you for watching the video that explained The Van der Waals equation. As I watched, a question came to mind. Does the state-of-the-art equation include changes over time? Similar to the Mpemba effect, hot water freezes faster than cold water. I only mentioned the temperature aspect, but I wonder if there is a formula that also considers the change due to volume or pressure.
@chelovechecheggg5185
Жыл бұрын
The state equations only describe possible states of matter and not the how those states change. We can use these equations to see what equilibrium state the matter will reach when changing for example pressure, but not how it will reach it or how long will it take. There are time-dependant equations that you're looking for, heat equation and diffusion equation for example. They're partial differential equations that describe processes in time, which is what you're looking for. I hope that helps ❤
@ps1hagrid93
Жыл бұрын
How does this channel only have 16 subscribers
@brendawilliams8062
Жыл бұрын
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.
@brendawilliams8062
Жыл бұрын
I don’t see how the Newtonian space could fully be appreciated without some scope of Einsteinium.
@brendawilliams8062
Жыл бұрын
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.
@ps1hagrid93
Жыл бұрын
@@brendawilliams8062 are you actually delusional
@jacobcoolguy
Жыл бұрын
The philosophical question you bring up at the end seems like it might be really relevant for more than just students soon
@tanchienhao
Жыл бұрын
Awesome explanation of van der waals model!
@Eta_Carinae__
Жыл бұрын
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.
@ktrnch2992
Жыл бұрын
Love the footnote goblin notes:)
@Threshold370
Жыл бұрын
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.
@VaraNiN
Жыл бұрын
Great video! More pls
@TheHectorOg
Жыл бұрын
Subscribed, nice one! Keep on working, your content is great 👍
@fibbooo1123
Жыл бұрын
Great video!
@AllemandInstable
Жыл бұрын
nice channel
@colettekerr279
Жыл бұрын
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)
@nicklockard
Жыл бұрын
Soneone said "All models are wrong. Some are useful."
@tompw3141
Жыл бұрын
Can the line in the PV diagram ever dip below P=0? Or would that require T
@tricky778
Жыл бұрын
In the bit about the edge and adjacent layers, "layer" and the diagram imply a boundary. How do you define the boundaries?
@sasa-bv9gu
Жыл бұрын
...and after all... you're my van der waal...
@tricky778
Жыл бұрын
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?
@geekjokes8458
Жыл бұрын
footnote goblin is now my favourite thing
@JAzzWoods-ik4vv
Жыл бұрын
>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
@sambrose1
Жыл бұрын
I'm starting to think we didn't go to the same grade school.
@japanjapan3102
Жыл бұрын
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
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