The Maxwell-Boltzmann distribution | AP Chemistry | Khan Academy

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The Maxwell-Boltzmann distribution describes the distribution of speeds among the particles in a sample of gas at a given temperature. The distribution is often represented graphically, with particle speed on the x-axis and relative number of particles on the y-axis. View more lessons or practice this subject at www.khanacadem...
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[@grantbell8143]

You do the stunt work for high school and especially college students. Most professors blow over this thinking it’s obvious, but it’s not. And I thank you for that

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How does this this guy knows everything ( Almost Everything ) !!!! He not only knows things but also explains them in such lucid manner that even a 5th grader would fell it a piece of cake

[@lydiajasmine6005]

Me -searching the whole world for a logical explanation and finds one at last .... thanks so much

[@georgen9755]

how can you be me ??

[@AhmedMustafax]

Can you do one of the actual calculus and use of the equation instead of just an overview? Thanks! Great work!

[@bakaiser0111]

Bless you so much!! I watched several different videos on this and didn't understand it until I got to you.

[@jessicadu6103]

Who’s doing AP chemistry and watching his video too👏

[@777Skeptic]

Some of us are engineers, and just peeking over the chemistry side because of FOMO.

[@a.syndeed]

I'm doing usual highschool chemistry

[@bidyutdatta7464]

Last night before exam 💪

[@davel7037]

What about Masters in Physics and watching this 🤪

[@dub22]

me 😢

[@jokerwierd6454]

7:52 so close

[@kaustavmukherjee8844]

Really man you clearly are putting a lot of effort in making these videos. Respect++.

[@Pooja-ll9sl]

This guy is more mind blowing😂. Thanks, man. You're a life saver

[@davidsweeney111]

This has always been my favourite, the Maxwell-Boltzmann distribution, amazing!

[@nimoosman7716]

Why i dont get anything 😢

[@MrPewPews]

bruh @@nimoosman7716

[@anubhavshankhwar]

Can you plz explain why the area under the curve should be constant?

[@scigy]

what a blazing fast speed

[@DogeFrom2014]

420 LOL

[@BigAsif999]

lol u were so excited

[@raanoooshh9296]

Well, some of the molecules were indeed in the first EXCITED state ;)He acted with them so we get a feel about the Maxwell-Boltzmann Distribution.

[@tonysuffolk]

Great explanation for laymen like me. Thanks for the upload.

[@UdAYcr7]

Mind Blowing EXPLANATION...

[@jaraxel888]

Great, you made it easy to understand. Thanks!

[@anotherdayofpreventingtrav8513]

ty so much u‘ve saved my life😂

[@Abhi-mu2cy]

4:42 I think no. of molecules in system are constant right I am confused weather open system or closed one is discribed

[@Sad_Atma]

How can you just perform the experiment on gas in open vessel

[@parthkhanayat420]

Thank you so much sir you made this topic really interesting

[@pollockshaun]

Hey Sal, please make a course on quantum mechanics

[@sharifulislam-tj2dy]

I highly appreciate for your nice explanation. Thanks a lot !

[@sciencenerd7639]

Gosh Sal Khan's videos are so dang good

[@idkwhattfiamdoing5653]

Very well explained 😊

[@Frostbitecgi]

please make a video series on maxwell boltzmanns distribution function derivation.

[@dieterecke5083]

What happens to the speed of sound at very low temperature then :0?

[@Cosmin-IonutFlorea]

Can this distribution be applied on solid bodies?

[@mohamedmusthafa814]

Nice explanation. Keep inspiring us!

[@tokajileo5928]

I just learned from aother online class from Reginald Penner that this maxwell boltzmann distribution is not the description of all states but the whole distribution is showing only the most probable state, so this curve is not the whole reality but the most probable one. There is a misunderstanding that this curve describes everything in a system but not, just the most probable case, I mean not one point of it or the maximum of it but the whole curve!

[@squaresensei]

Those Nitrogen molecules are travelling faster than the speed of sound!

[@jasirmukhtar2162]

U make everything look easy.Thank you

[@Abhi-mu2cy]

I think speed of sound is less because air particles moves in random direction but sound is measured only in some direction

[@Damn-Age]

What about the temperature of a vacuum system? How do we set the framework to analyze that? I am sure we will then be talking about even smaller particles like the photon. Do we have a video covering that?

[@ryklin1]

This seems over simplified. What you described are just Gaussian distributions of various particle speeds, emphasizing how the sigmas and means change as functions of speeds; perceived as different temperatures. I'd like to learn more. I suppose that a given particle changes its speed over time.

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You are a great legend brooooo

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Excellent video! Many thanks.

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Amazing Academy!

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U r Amazing....

[@hershyfishman2929]

9:10 Are you saying that molecules in a medium have to be moving as fast as a wave propagating through the medium? Why?

[@itdoomkiller]

im required to know this at GRADE 8😭😭 and my teacher cant do chemistry💀💀 thank you so much

[@CanbarSom]

very well said

[@themechanic5628]

The y axis is not the number of particles. It is the distribution dN/dT. Please correct it.

[@riturajsinghpanwar6470]

You are doing a holy job 🙏

[@oonievlogs]

how did u get the speed of 422m/s? is there a certain calculation or was it a random value?

[@QueenTanu24]

hey hii joelle FROM WHICH COUNTRY YOU BELONGS TO? as your name suggests you are may be from japan or koria or other country.

[@raghavendra007kinder8]

thank you man fr helping me out

[@bishalthapa4639]

Is it appropiate to say kinetic energy is proportional to average speed of the molecule or rms speed of the molecule confuz??

[@Midnight-xc3vc]

Wow such a great explanation

[@dhairyaparikh3048]

Absolutely amazing explanation, but I am wondering how can a particle or air i.e. nitrogen have a most probable speed greater than speed of sound ? seems weird

[@ANJA-mj1to]

Like to see opus of Maxwellians life and researching

[@Dai_rui]

Can you make 2nd and third year courses as well

[@leiashen7008]

But why is container B narrower than container A?

[@axilles2023]

your graph is incorrect,the curves have to finish by approaching the x-axis asymptotically !

[@akarshanpandey7036]

Well that's okay... Not a big deal.

[@apwned]

I wish they would teach us like this in school. Thank you khan academy

[@microhoarray]

Buğra Kaan couldn’t agree more:)

[@stokey99]

how is the left axis number of molecules,, and if it is, how can the number of molecules just change in a system?? i don't understand?

[@malekemerald9948]

love your work and love your voice

[@ishanp7484]

sir please explain how no of molecules change?

[@i.m.Q.2]

This is great except for one small detail. Going through all of that and I still don't have the most important thing-the actual equation. 😐

[@person17_ro]

Such a great video

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the first HD video in the playlist, aleluia

[@khyatisingh747]

How does having the same area equal the same no. Of molecules each container has. Won't area be like, fraction of molecules×Vel. ??? How does it give us no. Of molecules?? Can someone kindly explain. . .

[@gerhardbritz1196]

I still do not understand how the amount of molecules can change. Like isn't it supposed to stay constant?

[@saaadmm1732]

Thank u a lot 😊💐💐💐

[@tristanmoller9498]

I love this thank you so much

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Great👍

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Sweet ! that was so sweet

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can you please explain SMITH CHART ( Electrical engineering)?

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awesome....👌👌👌👌👌

[@mr.rathore7051]

Thanks a lot sir

[@zoubiaateeq8747]

This was fun

[@emirselman3984]

Why is the most probable speed the tallest point on the curve - shouldn't it be the highest speed instead?

[@unFayemous]

Emir Selman no, because having the highest probability means the highest amount of particles will have this speed (as compared to other speeds). Since the Y axis describes the amount of particles that should have that speed, the most probable speed will have the largest amount of particles, thus have the highest Y value.

[@person17_ro]

Best !!!!!

[@canys24bb78]

Why Maxwell Boltzmann distribution fell in quantum physic?

[@JKBEAST]

I came to watch this video for the same reason

[@saniynazeer3152]

Why is his views so low guys do not take this lightly

[@loveisphysicsy9679]

An excellent video 👍🙌👌

[@kidamaroo]

The speed thing that he mentions sort of reminds me of the speed on sound. Is there a relationship between the Boltzmann Maxwell distribution and the speed of sound?

[@eusterich3035]

Nope adiabetic compression approximates practical speed

[@priyamvadapriyam9415]

Thanks 👍👍

[@tristanmoller9498]

Now how did we calculate the most probable speed?

[@user-qq2bq8sf4y]

differentiate it, the slope should be 0 at most probable speed

[@RemunJ66]

That constant noise in my ear nowadays must mean something seen in this context don't you think? 😉

[@tejasshenoy2095]

its been hotter nowadays, probably thats why lol

[@henrikwong9545]

What is this blackboard software?

[@denkenunddanken5961]

I think in the graph x-axis is number of molecules n on Y-axis is speed, isn't it? Someone please clarify me 🙏

[@megamik1993]

yes

[@sologouda6180]

God bless you

[@PTGaonkar]

even this youtube views have the same graph as maxwell's ditribution at 400 K

[@hamzaamdii6018]

thanks :D

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Wow😮😮

[@aliyajamal3757]

great

[@jiashan1909]

Thank you :-)

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jiashan1909

[@usman5954]

Perfect! Loved it!

[@govindraju2934]

Super

[@osnatcsillag8596]

Thank you!!(=

[@KookinHaole]

How come particles aren't producing sonic booms all the time?

[@ricardoraimundo4762]

They are themselves the barrier

[@jastu1526]

9:21 That voice break

[@CanbarSom]

your aware of it?

[@Hell123o]

I tried catching a nitrogen right now...xd

[@mamioroyoutube5111]

wow best

[@spermwhale5766]

Consider your mind.... Boggled😎

[@hakeemnaa]

waw

[@faithelias2798]

God loves you all

[@ak02.9]

I’m now scared of nitrogen 🏃‍♂️

[@learning-pe9ww]

👍👍👍