Question

what is the method to determine spontanity​

Answer 1

Answer:

Using entropy to determine spontaneity

In many processes, the increase in entropy of the surroundings is accomplished via heat transfer from the system to the surroundings (i.e. an exothermic process).

Answer 2

Answer:

By conserdering the two factor we come with give energy to predict if a reaction will produce spontaneous or not if the gibs free energy is negative or if positive than it is non spontaneous