## factors of Gibbs free energy

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

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

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

Kaylee Clarke 1G
Posts: 103
Joined: Fri Aug 30, 2019 12:15 am

### factors of Gibbs free energy

why is reaction free energy dependent on pressure and the equilibrium constant?

eduardomorales5
Posts: 77
Joined: Fri Aug 30, 2019 12:15 am

### Re: factors of Gibbs free energy

The equilibrium constant, K, shows where the system reaches equilibrium, so that no work is being done by the system (Gibbs=0). Different value of Q will show how much work a system can do, and the spontaneity of the system. Because the Gibbs free energy shows the maximum available work a system can do, and work is related to pressure, a change in pressure will affect the Gibbs free energy.

Philomena 4F
Posts: 27
Joined: Wed Feb 27, 2019 12:16 am

### Re: factors of Gibbs free energy

delta G is more positive when the partial pressure of the product/s increases.
delta G is more negative when the partial pressure of the reactant/s increases.