Gibbs free energy (G) is represented by, G = H TS, whereas Helmholtz free energy, A. is given by, A = E TS. Which of the following is the Gibbs-Helmholtz equation ?

A. [?(G/T)/?T] = (H/T2)

B. [?(A/T)/?T]V = E/T2

C. Both A. and B.

D. Neither A. nor B.

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