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Thermodynamic Entropy

  • #1
1
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Homework Statement:

Thermodynamics - entropy - second law

Relevant Equations:

dS = λ*dQ ----> dS = dQ/T , where λ = 1/T
Help!
Hi, I need
in the secodn law of thermodynamic, we have the ENTROPY "S".

Well, I need help for this:
We have dS ≈ dQ

Then we have dS = λ *dQ
where we have λ = λ (T, ... )

I have to demostrate that :
λ = 1/T , where T = temperature.

Thanks for the advices and help!
 

Answers and Replies

  • #2
stevendaryl
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To be able to prove that ##dS = \frac{dQ}{T}##, you need to start with the definitions of ##S, Q## and ##T##. What definitions are you supposed to start with?
 
  • #3
rude man
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We have dS ≈ dQ
We do? S and Q have different dimensions!


Then we have dS = λ *dQ
where we have λ = λ (T, ... )

I have to demostrate that :
λ = 1/T , where T = temperature.

Thanks for the advices and help!
[/QUOTE]
 

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