## Gibbs Free Energy

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

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

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

Chu 3J
Posts: 19
Joined: Fri Sep 25, 2015 3:00 am

### Gibbs Free Energy

Why is it that if "G" is a minimum then any negative value changes are always spontaneous?

Ashley Ramos2C
Posts: 8
Joined: Fri Sep 25, 2015 3:00 am

### Re: Gibbs Free Energy

Any delta G value must be a negative because in order for a process to be spontaneous no work can be put into the system to make it occur it has to be an an endothermic reaction so you delta H has to be a negative value as well as your delta G.