Which is not a thermodynamical potential

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Sir,
Among the following which is not a thermodynamical potential:
Entropy,Internal energy, Gibbs free energy,Enthalpy
 
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Nobody's going to just give you the answer. What are your thoughts on it? Do you know what a thermodynamic potential is?
 
StatusX said:
Nobody's going to just give you the answer. What are your thoughts on it? Do you know what a thermodynamic potential is?

Sir,
Could you please explain the meaning of thermodynamic potential?
 
^^^Ummmm, Google? o:)
 
In simple terms

the U representation

U=U\left(S,\{X_{i}\}_{i=\bar{1,n}}\right)

then a thermodynamic potential is a Legendre transformation of the internal energy wrt one or more intensive parameters associated to S and the external extensive parameters...

Daniel.
 
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The value of H equals ## 10^{3}## in natural units, According to : https://en.wikipedia.org/wiki/Natural_units, ## t \sim 10^{-21} sec = 10^{21} Hz ##, and since ## \text{GeV} \sim 10^{24} \text{Hz } ##, ## GeV \sim 10^{24} \times 10^{-21} = 10^3 ## in natural units. So is this conversion correct? Also in the above formula, can I convert H to that natural units , since it’s a constant, while keeping k in Hz ?
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