## Gp=Gr

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

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

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

ursulavictorino1K
Posts: 55
Joined: Sun Feb 17, 2019 12:15 am

### Gp=Gr

Why does Gp have to equal Gr in order for the system to be in equilibrium?

RasikaObla_4I
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

### Re: Gp=Gr

At equilibrium, the forward and reverse reactions occur at the same right which means that they are at their lowest energy states. As a result, the Gibbs free energy of the reactants and products has to be the same at equilibrium.

Zoya Mulji 1K
Posts: 105
Joined: Thu Jul 11, 2019 12:15 am

### Re: Gp=Gr

If the rates of reactions are the same, the free energies on both sides of the equation should be the same.

ursulavictorino1K
Posts: 55
Joined: Sun Feb 17, 2019 12:15 am

### Re: Gp=Gr

What does it mean for them to be at their lowest energy states?