We could've easily said , they have the same tempertaure instead of thermal equilibrium. It would've been easier to understand on the first place. Amazing job overall. Thank you!
This is the first time David did something dumb; it should be Key Lime Pie out of the fridge, a plate from the cupboard, and a thermometer. "Steel balls" and "cubes of water".....doh.....he gets a pass though 'cos all his other stuff is genius! BTW, this law was created after the fact to make it OK to use a thermometer! The thermometer is the 3rd object and we needed to formally agree that the thermometer's temperature IS the temperature of thing it's measuring.
Let's keep going backwards. -1st law of thermodynamics: An object at a temperature will remain at that temperature unless acted upon by a different temperature. Except for maybe radiant heat ... might have to tweak this law. I credit the name of this law to a previous commenter.
Think of it as a stove, a pan, and an egg. Imagine you heat the stove up till it's red hot. Now place the pan on the burner. After a time, the bottom of the pan and stove burner will be the same temperature. Now, for the sake of argument, lets say you take the pan off the 1st burner and place it on the 2nd burner (same area and temperature as 1st burner), and the pan holds it's temperature, regardless of the brief airflow during the burner exchange. Now if you place the egg in the pan which is now on the 2nd burner, the egg will eventually become the same temperature as the pan, which has maintained the temperature of the 1st burner. 1st Burner = 2nd Burner = Pan = Egg. They will all be equivalent in terms of heat energy _(insert thermodynamic equations here)._ Therefore, if you place the egg on the 1st or 2nd burner, the egg will neither get warmer or colder. It'll be in perfect equilibrium with the pan and 1st *OR* 2nd burner. _Don't take this example too literally. Obviously, IRL, the egg will burn, causing energy to escape due to chemical reactions (which is a whole other set of equations). This is just a thought experiment._ That's a very basic citation of an example of how I was introduced to the 0th Law as an undergrad. Hope it helped.
@@Fermion. How come the egg and the pan will still have the same temperature? Isn't the egg at a different temperature in the first place? Let's say the egg's colder so when you put it in the pan there'll be exchange of heat which in turn changes the temperature as well. In no way all 4 of the objects you mentioned will attain thermal equilibrium. P. S: I know I'm wrong but please explain it to me explicitly.
Chase Nevins only like 9 months late. But I think it's like saying if outside is at 20 degrees and in your house it also 20 degrees when you open your door for some reason your house gets warmer/colder even though there the same temperature
Basically, the 0th law of thermodynamics may be wrong in such a universe that defies math and physics. In our universe, the 0th law is part of our physics code but in another universe, this may be physically impossible.
Imagine a universe where "intelligent people" wouldn't have to come up with dumbass theoretical examples of alternate universes where our "universal laws" wouldn't apply and would therefore not be "examples" of "universal laws".
Imagine if they found an even more important law then they'll call it the negative first law of thermodynamics
Haha 😂 that's funny.I was just thinking about this!
And they found a more trivial one and called it -2nd law
No background 'music', and an explanation of the term 'zeroth'. Really good exposition, thank you very much indeed.
I like this guy
Jared McClammy me too... :)
+Jared McClammy his explanation is really easy to understand :)
I'm speechless ... You're amazing !!
Excellent video. Excellent point made about establishing a temperature scale.
this was SO helpful i was honestly thinking the law was obvious and didn't realise why it was so significant but makes sm sense now
Wow, thank you so much. I really understood the concept now 💯
things are made really simple n clear in ur videos
thanx a lot
Better explained than chatgpt, good job!
Yo, I actually loved this explaination. Dunno why the views to likes ratio are bad
thank you, you have an amazing way to deliver the information
We could've easily said , they have the same tempertaure instead of thermal equilibrium. It would've been easier to understand on the first place.
Amazing job overall. Thank you!
U just saved my life, tnx
Thank you. Good job
a variation of euclid's two things equal to the same other thing equal to each other?
thanks, this is going to be my report :D
That's the genius of Meghnad Saha. The first one to mention this law in his book.
EXCELLENT
so basically it means the vibration of molecules in 3 different types of matter remains consistent if theyre in thermal equilibrium?
great way of presentation....
Good lecture.. thank's
Thanks a lot! Simple and easy ^_^
Thanks
Love khanacademy !!!!!!!!!!!!
man love you
Better than my lecturer
i respect
5:30 he's funny without even trying
This is the first time David did something dumb; it should be Key Lime Pie out of the fridge, a plate from the cupboard, and a thermometer. "Steel balls" and "cubes of water".....doh.....he gets a pass though 'cos all his other stuff is genius! BTW, this law was created after the fact to make it OK to use a thermometer! The thermometer is the 3rd object and we needed to formally agree that the thermometer's temperature IS the temperature of thing it's measuring.
thanks sir
sir when 2nd body is come to contact with third body then why there is no heat transfer can you giive me reason
Let's keep going backwards.
-1st law of thermodynamics: An object at a temperature will remain at that temperature unless acted upon by a different temperature.
Except for maybe radiant heat ... might have to tweak this law.
I credit the name of this law to a previous commenter.
that universe will be universe good for physics not bad
Hii. Why. Given name 0rh law , alll law like 1st 2nd etc please tell me.
Akib alam it was found after the first and the second law
Why is this a law👀?
Why every one take 3 objects in zeroth law
I still don't get it, but I think that's just because I'm here at a time when it's a given that this is the way it is.
Think of it as a stove, a pan, and an egg.
Imagine you heat the stove up till it's red hot. Now place the pan on the burner. After a time, the bottom of the pan and stove burner will be the same temperature.
Now, for the sake of argument, lets say you take the pan off the 1st burner and place it on the 2nd burner (same area and temperature as 1st burner), and the pan holds it's temperature, regardless of the brief airflow during the burner exchange. Now if you place the egg in the pan which is now on the 2nd burner, the egg will eventually become the same temperature as the pan, which has maintained the temperature of the 1st burner.
1st Burner = 2nd Burner = Pan = Egg.
They will all be equivalent in terms of heat energy _(insert thermodynamic equations here)._ Therefore, if you place the egg on the 1st or 2nd burner, the egg will neither get warmer or colder. It'll be in perfect equilibrium with the pan and 1st *OR* 2nd burner.
_Don't take this example too literally. Obviously, IRL, the egg will burn, causing energy to escape due to chemical reactions (which is a whole other set of equations). This is just a thought experiment._
That's a very basic citation of an example of how I was introduced to the 0th Law as an undergrad. Hope it helped.
@@Fermion. How come the egg and the pan will still have the same temperature? Isn't the egg at a different temperature in the first place? Let's say the egg's colder so when you put it in the pan there'll be exchange of heat which in turn changes the temperature as well. In no way all 4 of the objects you mentioned will attain thermal equilibrium.
P. S: I know I'm wrong but please explain it to me explicitly.
Very confused after 3:55. Can someone explain in a more realistic way please, thank you.
Chase Nevins only like 9 months late. But I think it's like saying if outside is at 20 degrees and in your house it also 20 degrees when you open your door for some reason your house gets warmer/colder even though there the same temperature
Basically, the 0th law of thermodynamics may be wrong in such a universe that defies math and physics. In our universe, the 0th law is part of our physics code but in another universe, this may be physically impossible.
Imagine a universe where "intelligent people" wouldn't have to come up with dumbass theoretical examples of alternate universes where our "universal laws" wouldn't apply and would therefore not be "examples" of "universal laws".
mmmmmm keylime pie..
Mind blown.
Not really...
Fuck sake who invented long words
extremely bad :((
Praise God, he took care of that..
EXCELLENT
thanks
that universe will be universe good for physics not bad
thanks