Change of Gibbs Free Energy and Chemical Potential

4 Change of Gibbs Free Energy and Chemical Potential 

As understood from (E.19), the Gibbs free energy is the energy due to substances flowing in/out the system  

Gibbs free energy is also a part of energy that is converted to work, but not converted to heat. We call the process where AG 0 the exergonic reaction, whereas AG 0 is the endergonic reaction ( ergon implies work). 

If the states before and after the reaction are kept standard and the change of entropy is (A5 ) (change of standard entropy), the change in standard Gibbs free energy (A5 ) is given by 

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