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WHAT IS GIBBS ENERGY? |
| Gibb's free energy is a thermodynamic potential that measures the useful or process initiating work obtainable from a thermodynamic system at a constant temperature and pressure Gibb's free energy is the maximum amount of non expansion work that can be extracted from a closed system .This maximum can be attained only by in a completely reversible process .The Gibb's free energy of a system at any moment in time is defined as the enthalpy of the system minus the product of the temperature times the entropy of the system . G = H -TS Gibb's free energy of a system is a state function because it is defined in terms of thermodynamic properties that are state functions .The change in the Gibb's free energy of the system that occurs during a reaction is therefore equal to the change in the enthalpy of the system minus the change in the product of the temperature times the entropy of the system .  G = H - (TS) |
