- #1
Chiborino
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Homework Statement
Consider an imaginary substance which is characterized by thermal energy
U=[itex]\frac{NS^2}{V^2}[/itex]
(a) Determine the Helmholtz free energy F(T, V).
(b) Determine the Gibbs free energy G(T, p).
(c) Determine the enthalpy H(S, p)
Homework Equations
F=U-TS (maybe dF = dU - sdT = -pdV - sdT?)
G=U-TS+pV = F+pV (dG = -sdT + Vdp
H=U+pV (dH = TdS + Vdp)
The Attempt at a Solution
I'm really lost when it comes to this. My professor hasn't done any examples with this sort of problem, the book doesn't have anything like this in it, and I can't find a problem similar online anywhere. So my best guess is to just throw the N(S/V)^2 into the potential formula for each problem and circle it. But I get the feeling that F(T,V) =N(S/V)^2 -TS isn't a valid answer. A quick explanation of how to proceed would be extremely helpful.