## Delta G

$\Delta G^{\circ}= \Delta H^{\circ} - T \Delta S^{\circ}$

$\Delta G^{\circ}= -RT\ln K$

$\Delta G^{\circ}= \sum \Delta G_{f}^{\circ}(products) - \sum \Delta G_{f}^{\circ}(reactants)$

Raquel Ruiz 1K
Posts: 30
Joined: Tue Nov 14, 2017 3:02 am

### Delta G

Can someone clarify what exergonic and endergonic mean ? And how they relate to delta G. Thanks!

Te Jung Yang 4K
Posts: 63
Joined: Fri Sep 28, 2018 12:18 am

### Re: Delta G

Exergonic is when delta G is negative.
Endergonic is when delta G is positive.

deepto_mizan1H
Posts: 65
Joined: Fri Sep 28, 2018 12:16 am

### Re: Delta G

Exergonic: (-) sign. It releases energy spontaneously, which fits our definition for a negative delta G value. The bonds formed are essentially stronger than the bonds broken.

Endergonic: (+) sign. It absorbs energy, which fits the definition of the positive delta G value, being not spontaneous at all. The bonds formed are essentially weaker than the bonds broken.

Toru Fiberesima 1L
Posts: 63
Joined: Fri Apr 06, 2018 11:02 am

### Re: Delta G

Exergonic processes release energy. The change in Gibbs free energy (ΔG) is a negative value because energy is lost,
whereas an endergonic processes absorbs energy and their products are of greater free energy than the reactants.