## Outline of Thermodynamics #3

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

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

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

KeiannaPineda1B
Posts: 51
Joined: Mon Jun 17, 2019 7:24 am

### Outline of Thermodynamics #3

Why does reaction free energy depend on pressure and the equilibrium constant?

JChen_2I
Posts: 107
Joined: Fri Aug 09, 2019 12:17 am

### Re: Outline of Thermodynamics #3

Gibbs free energy depends on the equilibrium constant/reaction quotient as shown by these equations:
deltaGo=-RTlnK
deltaG=deltaGo+RTlnQ

Justin Quan 4I
Posts: 104
Joined: Sat Sep 14, 2019 12:17 am

### Re: Outline of Thermodynamics #3

To add on, you can tell that free energy, or ∆G, depends on the equilibrium constant K by observing the equation ∆G˚= -RTlnK. Also, the equilibrium constant will change if the pressure changes, thus ∆G depends on pressure as well.