The van der Waals equation | Khan Academy

Keep going! Check out the next lesson and practice what you’re learning:

Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

[belsanifrahim]

I really appreciate that they take less time to convey lectures unlike other teachers who makes 30 min video just for their profit and waste our time. It's sad that they do that. But I really respect all the teachers.

[HerrFuuuu]

This was a very good explanation for something that went under in my process engineering class - greetings from germany :)

[tommyboy]

I felt a few pascal units of pressure on my mind on that one.😎😀

[MasterCivilEngineering]

One of the best equation in chemistry. This equation works like magic in chemistry

[akshatparag]

I think ur videos ( especially physics) could be helpful to clear one's IIT jee in India

[seachemistry]

Sal mate, you are such a good ducking teacher

[kasparcersnakov]

Isn't the term "a * ( n^2 / V^2 )" due to surface effect (gas molecules near the surface of the container sense a net force towards the "inside of the volume", whereas the gas molecules "deep inside the volume" sense no net attraction since it compensates thanks to simmetry)? In that case...
How is surface area taken into account in van der Waals equation?
The container of the gas may be a ball, a cube, or a corrugated shape. Shouldn't that lead to different amounts of pressure reduction due to surface effect? Coefficient "a * ( n^2 / V^2 )" seems unrelated to surface area.

[Chamelionroses]

That is interesting. Is there some way besides this you could do more on plasma? I am really curious if there is more on the topic than a playlist I created on that state of matter.

[thebeatdropbutton]

hey, why do you subtract directly from V, but indirectly from p (on the other side) ?

[LastThai]

ah do you have video
Explain how to find Van der waals internal energy ?

I can't prove that it is U = U(initial)+cvT - a/v

[avatar]

Sorry sir, i wanna ask something. Why density (n/v)^2 ? not (m/v)^2?
Sorry for my bad english, thx.

[이영석-ms]

Is this enough for Korean middle school students to understand?

[Monkey-vw]

Hindi me boliye hum hindi medium se h 😊

[mohamedabdi]

Amazing but we need Forex teacher update Forex 2020 Khan is best chenal