Question

give expression for it how gibbs energy is useful to predict ?​

Answer 1

Answer:

If we want to predict the feasibility of a chemical change we can look at the entropy changes in the system and in the surroundings. And if the sum of these two entropy changes is positive then we can conclude that the chemical change is feasible.

Answer 2

Answer:

If we want to predict the feasibility of a chemical change we can look at the entropy changes in the system and in the surroundings. And if the sum of these two entropy changes is positive then we can conclude that the chemical change is feasible.