Carnot cycle and Carnot engine | Thermodynamics | Physics | Khan Academy
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Introduction to the Carnot cycle and Carnot heat engine. Created by Sal Khan.
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Пікірлер: 246
This video was released when I was in the kindergarten
@naveedthalappil7976
4 жыл бұрын
Music Forever ! Same
@darealpoopster
3 жыл бұрын
Same, I was 5!
@datsmydab-minecraft-and-mo5666
3 жыл бұрын
same!
@joyeetaroy9305
8 ай бұрын
I was learning how to talk than
@SpartanFunnyProyect
Ай бұрын
I was 8 xD
Haven't started watching this explanation yet, but I already know its going to be a shitload better then my lecturers
@TurdFurgeson571
4 жыл бұрын
Don't discount the fact that by now you're hearing this information for at least the second time. Try doing things the other way next time. Watch Khan first, then go to lecture. I promise you will enjoy lecture more than you do now. You will be prepared to work with this information on a new level in class and you will likely be able to ask better questions, which will only help you understand this stuff. Perhaps that may be the source of your trouble, too, that you don't ask questions. I don't know you, but I do know that most students remain quiet and confused, and thus frustrated at their professors or the content. It seems like most don't want to look stupid in front of peers. It's okay to look stupid when learning things you've never learned before. (You're all stupid! Why wouldn't you be? You've never done this before.) Regardless of the expectations you have for yourself, I promise you your instructor is not expecting you to completely understand this stuff after hearing it _one_ time. No one expects that. For the love of who or whatever you believe in, ask questions. If you're afraid to speak up in class, send an email, go to office hours, hell do your homework at office hours. "That's so awkward!" Oh well. This is why you pay tuition, not to sit in a class and hear something once, but to actually learn the material; learning requires this work on your part though, it's an active process. That's how to use your professors, and get the most out of a mortgage's worth of student loans you're going to have. Khan is great, but realize that you had to take time out of your day to participate in your learning. Your professor and Khan are both available, but it's up to you to actually utilize the resource.
You're animations are just fine man.. I've never taken formal physics courses, but for 10+ years now I've done my own research via books,magazines etc... Your videos by far are the most clear and to the point..your analogies are tough sometimes..but het..that's what pause and repay are for! Keep it up brotha! This is much appreciated!!
@khletus9061
Жыл бұрын
10 more years have passed since your comment, how is your research going ?
The day after tomorrow is my physics exam. While revising thermodynamics , i was facing some difficulties to understand this topic. Thanks to Sal for explaining the concept in a easy way. Love from Bangladesh❤️❤️
why do i pay tuition
@cbear9355
5 жыл бұрын
You summed up college for me.
@amazingworld9463
5 жыл бұрын
Paagal
@SaeedAcronia
4 жыл бұрын
@@audacioustux Jesus. Poor guy just asked a question man.
@shubhaprada9423
4 жыл бұрын
but I feel why do I pay even to college?
@chrisscott3725
3 жыл бұрын
For that piece of paper called a degree
I can't thank you enough!!! SAL!!! MA MAN!!!! seriously, I was really troubled by this... I'm so grateful that youtube exists and there's a channel called khan academy
For some reason I kept getting confused about how Q1 was coming into the system and Q2 was going out. This video helped so much!
You are so much better than my thermo professor....
Thank you sir. Your video is worth a million dollar instead of reading the boring physical textbook. As long the concepts are grasp properly, it will stay with you forever.
I want to know what drugs carnot was doing, they seem pretty good!
@shohanthegreat9857
3 жыл бұрын
Lmfao
@ok_computer12
3 жыл бұрын
Existential crisis.
I was struggling to understand this. Thank you for this!
Such a great explanation. I'd forgotten just how incredible Khan Academy was.
Thank you for the video! You made it all so simple to understand
THANK YOU!
wow i have to say this is awesome. I didnt think i would find a video that would explain carnot cycle to a point that i would understand. Thanks man !
Very comprehensive video on Thermal cycles, nice work!
Thank you so much for your helpful tutorial! :D
Thank u so much! U r doing a GREAT work there...
im taking this right now with a prof that graduated from MIT as well ;) thanks for all the help sal
I love captions so much...especially when I find that I can open a Chinese captions.感觉世界充满关怀
Brilliant video, you have helped me so much! Thank you :)
10:13 I think as pressure is decreased, the volume is increased. You said volume goes down. But awesome work here.
all your videos are very helpful. thank you!
all lectures deliverd by this HONOURABLE professor are soooooooooo nice. i like all the lectures and enjoyed. i realy appreciate wow. keep it up sir. May God give u long life to educate us
Great explanation!!keep it up
All of these videos are really just incredible. I'm a sophomore engineer and I still find these videos really helpful! I wish there was some way to help you put out these videos. Really, really admirable--thank you
@annym.8170
4 жыл бұрын
amassad127 donate khanacademy.org
not finished repeating it but already IMMENSLY helpful
It’s kinda crazy when I fully understood the mechanism behind it. It gave me that”aha!” moment. Again, I am thoroughly impressed by Khan academy
great video! it help me a lot
thanks
Thanks for helping me in learning it.
THANK YOU, i understand now
Thanks khan academy👌👌All ur lactrs r v Funnt and amazing
Thank you so much
wow!!! Thanks Sal.
its awesome i can learn phy very easily
Appreciate ur work!
these lectures should be put into number order
Haaa if i had access to internet when i was a student....
Hi, Love your videos, is there a way to watch just thermodynamics ones? Thank you
Very good thanks Very much!!
i would like to see such a talented professer!!!!!!!
I just love your videos vai,love from Bangladesh.
beautiful!
Good work.
Great Video.... I would have failed my physic xm if I wasn't there....
@alijaved3356
8 жыл бұрын
+Abhisek Upadhyaya no shit sherlock
@janmay6349
8 жыл бұрын
+Ali Javed Give him some ice for that burn
@alijaved3356
8 жыл бұрын
Janmay Patel lol :P i had forgotten about this
I tripped on your shit. I understood it all. thanks.
useful engine ... .. childhood comes to mind D,:
THANK YOU SO MUCH!!!!
great video sir :)
TYSM 🥰
Teach forever sir
Simply made too simple by khan
Thx a lot
wow great channel! i am stunned! great work!!!!! :D
Gracias.
thanks a lot
Thank you dear!
From B to C (adiabatic) process, why does Volume keep increasing since there's no change in heat transfer and there's no source / reservoir?
@arnatri1503
6 жыл бұрын
Fabrice Vieillesse when adiabatic expansion is taking place, the piston is just allowed move out. Therefore the gas expands increasing the volume.
Shouldn't delta-U have a specific value considering for an adiabatic process Q = 0 always? In that example, W(AB) = 0; no work has been done. But the gas did do work considering the change in Volume... idk maybe I'm not seeing it.
thank you
Thank's from Germany!
Thanx so much!
8:43 "I should be talking about thermodinamics not drawing" lol
I understand. Work done went
Thank you ❤️
During the isothermal expansion process, does the system simultaneously absorb heat while doing work?
Thanks a million 🙏❤❤❤❤❤
Can we say that the work done to the system from A to C is equal to mgh of the stones where h is the distance traveled by the piston?
wow!
Thankyou sir
also, at 7:00 : im taking pchem I right now, and we do define deltaU=q+w. so qab=-wab.
Wow😍
I understood, work done by the system is transferred the heat from hot reservoir to cold reservoir.
when it goes from D to A is there still a resevoar ?
Thanks
than...k.S thamks
One Question: By removing the Rocks, you have to use Work from the outside - would'nt that make the process irreversible?
@Vasu-qn6kj
2 жыл бұрын
Wouldn't that also make it redundant? I mean Carnot cycle is utilised in an engine right.. you made an engine because you wanted to do work on something.. but if you have to do some outside work to make that happen.. then you're basically doing work to get work. Doesn't make sense to me. But ofcourse I'm obviously missing something. I just don't know what that is.
@phantomj8449
2 жыл бұрын
They were actually adapted from the rotation of a train wheel, when as the rocks decrease, it indicates the axes start to have less push on the wheel (or backward resistance), closing in on 90 degrees to the forward motion of the train. Keep on going, and the wheel’s spin pushes the piston in the opposite direction, compressing the gas and then there’s the next 2 stages, completing the cycle.
thAnks
first 2 mins ----> instant subscribe
How is adiabatic process digrammed with isothermic process in 2D and in isothermic process T is const while in adiabatic process T is variable so there must be 3D diagram For 3 variables P&V&T
@adityakhanna113
7 жыл бұрын
It's a projection. The third variable is just mentioned. it's a bit messy to do 3d and 2d is understandable
@tejasgajra2731
6 жыл бұрын
A graph is always drawn between independent variables P,V&T altogether are not independent i.e. if two are known ,we can find the value of the third.
If the internal energy of the ideal gas from 1-2 was zero ( the work done (1-2) was to increase the volume and decrease the pressure ) , then what is the internal energy of the ideal gas during adiabatic expansion ( process 2-3 )
you deserve a Nobel prize..nuf sayed
nice
in both process the volume is changing going up during expansions and going down in a compresion
chemistry textbooks u = q + w physics textbooks u = q - w chemistry defines w as work done on the system physics defines w as work done by the system same equation MIND YOUR SIGNS
the sound of crows cawing in the background at around 8:45!!!
You rock.... ALOT!! ;)
enggizo, this is physical chemistry. physics+chemistry. :) good stuff
man you're really cranking these out, it's hard to keep up
@arjundenath8535
3 жыл бұрын
11 years, How those videos affected you?
Where does the net amount of work done by the system went in carnot cycle, from the law of conservation of energy.
👌👌explaination
Do you use the mouse or a tablet? love your work! so awesome!
@vibhukumarsubramani1939
6 жыл бұрын
of course tablet
at 10:11 Salman Could have meaned "my pressure would have kept going down and my volume would have kept going up"
ı wish ı could like it for billion times hahhah
you have got a nice voice and understanding but use better animations the current one suck
He sounds like Tom Hanks at 1.25x speed lol
@wings4994
3 жыл бұрын
Yeah lol
I can’t thank you enough :)
So A to B is adiabatic and so is B to C? I'm sorry but isn't T2 going into the system? Or is this a system definition issue? Thanks for the video, though. Very good!
How do we know that Q2 < Q1? That is, how do we know that a smaller amount of heat is transferred from the system, between C and D, than to it, between A and B?