Which of the following is CORRECT? [A = Helmholtz function (Helmholtz Free Energy), G = Gibbs function (Gibbs Free Energy), U = Internal energy, H = Enthalpy, T = Absolute temperature, S = Entropy]

Which of the following is CORRECT? [A = Helmholtz function (Helmholtz Free Energy), G = Gibbs function (Gibbs Free Energy), U = Internal energy, H = Enthalpy, T = Absolute temperature, S = Entropy] Correct Answer A = U - TS ; G = H - TS

Explanation:

There are eight properties of a system, namely pressure (p), Volume (V), temperature (T), internal energy (u), enthalpy (h), entropy (s), Helmholtz function (f) and Gibbs function (g) and h, f and g are referred to as thermodynamic potentials.

Helmholtz function F = U - TS

Gibbs free function G = H - TS

Gibbs free energy function (G)

G = H – TS

G = f(H, T, S)

Gibbs free energy functions is a property comprises enthalpy, temperature, and entropy.

Gibbs free energy is a measure of the amount of energy available to do work in an isothermal and isobaric (constant temperature and pressure) thermodynamic system.