Recent content by John Perez

Thanks, I think I got it, though I received kind of conflicting answers. Im leaning for the non-quasi-static = inequalities.

Ok, thanks. So all those things are only valid for quasi-static processes, and not "violent" ones. So, for example, dG = -SdT + VdP + ∑ μi dni is not valid for "violent" irreversible processes. Or I understand wrong? After all, like you say it is just a consequence of mixed partial...

Thanks for answering! Oh, I didnt know about that Poincare lemma. And the definition of the potentials does apply to any processes. But I couldn't find anywhere on the first link a mention of the relations bieng valid in one or the other scenario. The answer in the second link seems to be...

Hi, I have a question If I am not mistaken, the Maxwell relations of theromdynamics -----for example: ∂G/∂T) = -S ; ∂G/∂P) = V ----- are valid only for reversible processes. On the other hand, dG = ∂G/∂T)*dT + ∂G/∂P)*dP + ∑ μi dni is valid for any process. This means that dG = -SdT + VdP...