State the II law of Thermodynamics. Give the equation that relates Gibbs energy with Enthropy and Enthalpy ofa system?

Explanation

Second law of thermodynamics cab be stated in a number of forms:
1. All spontaneous processes or naturally occurring processes are thermodynamially irreversible.
2. Without the help of an external agency, a spotaneous process cannot to reversed.
3. The entropy of an isolated system increase if it is to be spontaneous in a particular direction.
4. In a non -isolated system the total entropy of both the system and surroundings must increase or must be positive.
5. The total entropy of the universe must tend to increase in a spontaneous process. `G=H-TS`