Suppose that a small system A with constant volume and a heat reservoir system A' at absolute temperature

T

' are placed in thermal contact. Show that the second law of thermodynamics implies the Helmholtz free energy

F

must be a minimum at thermal equilibrium.\ No credit for the correct answer with no explanation\ Show vour work explicitlv including all the intormedinto

Suppose that a small system A with constant volume and a heat reservoir system A at absolute emperature T are placed in thermal contact. Show that the second law of thermodynamics implies the lelmholtz free energy F must be a minimum at thermal equilibrium