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 Post subject: Thermodynamics
PostPosted: Sun Nov 22, 2009 5:29 pm 
Joined: Sun Nov 22, 2009 5:26 pm

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Joined: Sun Nov 22, 2009 5:26 pm
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How to prove the zeroth law of thermodynamics?


Last edited by water2 on Mon Nov 23, 2009 5:34 pm, edited 2 times in total.

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 Post subject: Re: Thermodynamics
PostPosted: Sun Nov 22, 2009 5:30 pm 
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Joined: Tue May 29, 2007 8:46 pm

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Joined: Tue May 29, 2007 8:46 pm
Posts: 1631
Location: Ithaca, NY
Do your own homework, kid.


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 Post subject: Re: Thermodynamics
PostPosted: Fri Nov 27, 2009 9:00 pm 
Joined: Sat Jun 21, 2008 4:43 pm

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Joined: Sat Jun 21, 2008 4:43 pm
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I guess you could approach this either experimentally or theoretically.

Experimentally you could go to the lab and perform experiments to determine if 2 systems are in equillibrium with another system they are in equillibrium with each other.


But I enjoy the math, and think it would be more fun to theoretically prove this law.


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 Post subject: Re: Thermodynamics
PostPosted: Sat Nov 28, 2009 2:00 pm 
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lol, he edited his post to make it not so blatant.

Isn't the zeroth law if A=B and B=C then A=C? Isn't that an axiom?


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 Post subject: Re: Thermodynamics
PostPosted: Sun Nov 29, 2009 7:37 pm 
Joined: Sat Jun 21, 2008 4:43 pm

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Joined: Sat Jun 21, 2008 4:43 pm
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Yeah if a=b and b=c then a=c. But I was saying you could go into a lab and perform an experiment. Maybe boil 3 or so pans of water, and get out a thermometer.


But I was saying it would be more fun to prove it theoretically using the 2nd law of thermo and some differential equations or something.


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