What is the difference b/n spontaneity criterial of simple and non simple systems in terms of gibbs and helmholtz free energies?

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Superina0xb4i · Accepted Answer

Simple system is the single state system having no internal boundaries.Non simple system has barrier which restrict to transfer energy or matter.It is the maximum amount of energy is available to a system during process to do some useful work.  △  G  =  △  H  −  T  △  S is the change in Gibbs free energy.∆H is the change in enthalpy.∆S is the change in entropy.T is the temperature.For a spontaneous process, change in Gibbs free energy, defined at constant temperature and pressure, is negative because the energy of the system is decreases as the system moves from higher state of energy to lower state of energy.The criteria for spontaneity in terms of Gibbs free energy change is:If Δ G is negative, process is spontaneousIf Δ G is positive,  process is non-spontaneousIf Δ G is zero,  process is in equilibrium. Helmhotz free energies:The Helmholtz free energy is the maximum amount of useful work that can be extracted from a thermodynamically-closed system at constant temperature and volume.  F  =  U  −  T  SF is the Helmholtz free energy.U is the internal energy.T is the temperature.S is the entropy.The total excretable work or the change in energy during a process, under constant volume and temperature, called Helmholtz free energies, is negative for the spontaneous process.The criteria for spontaneity in terms of Helmholtz free energy change is:If ΔF is negative, the system is spontaneous.If ΔF is positive, the system is non-spontaneous.If ΔF is zero, the system is in equilibrium.

What is the difference b/n spontaneity criterial of simple and

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