## Calculating deltaG

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

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

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

Kellina Tran 2I
Posts: 50
Joined: Sat Jul 22, 2017 3:00 am

### Calculating deltaG

There are 3 different equations to calculate deltaG. When do we use each of them?

Lindsay Kester 2L
Posts: 29
Joined: Thu Jul 27, 2017 3:00 am

### Re: Calculating deltaG

You use them based on the information you're given, and depending on what is being changed (Is value constant, pressure, etc.).

Maeve Gallagher 1J
Posts: 56
Joined: Fri Sep 29, 2017 7:07 am

### Re: Calculating deltaG

If you look at the information you are given in the problem and the equations for deltaG, you can match them up to find the best equation to use.