Hello all.

I would like help with this question if its ok.

Assuming that the free energy of a substance, G, is a function of pressure, p abd temperature, T, i.e G=G(p,T)

(a) write an expression for the total differential change in the free energy, dG.

(b) Comparing the results from above with the equation
dG = V dp - SdT
Write down expressions for
(i) (DeltaG/Deltap)T
and
(ii)(deltaG/DeltaT)p

small T and p are meant at X constant


Any help would be appreciated