For the equilibrium , `DeltaG = - RT In K`.

For a system in equilibrium, DeltaG = 0 under conditions of constant :

For a system in equilibrium, DeltaG=0 , under conditions of constant

For a system in equilibrium, DeltaG=0 , under conditions of constant

In an equilibrium reaction if DeltaG^o = 0 the equilibrium constant, K should be equal to:

DeltaG of the system alone provides a criterion for the spontaneity of a process at constant temperature & pressure, DeltaG system lt 0 (spontaneous) DeltaG system = 0 (equilibrium) DeltaG system gt 0 {(non-spontaneous) Again DeltaG^@ is related to the equilibrium constant as follows : DeltaG^@ = 2.303 RT log K_e If both DeltaH and Delta S are negative, the reaction will be spontaneous