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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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