## Spontaneity

$\Delta S = \frac{q_{rev}}{T}$

Shuyi Yu 1B
Posts: 60
Joined: Fri Sep 28, 2018 12:16 am

### Spontaneity

If deltaH is positive and deltaS is negative, what is the spontaneity?

Emmaraf 1K
Posts: 94
Joined: Sat Oct 20, 2018 12:16 am

### Re: Spontaneity

It would be nonspontaneous since entropy is negative and Gibbs free energy is also positive since deltaG=deltaH-TdeltaS

Jacob Bershatski 4C
Posts: 30
Joined: Fri Sep 28, 2018 12:21 am

### Re: Spontaneity

Using the equation given to calculate Gibbs Free Energy, you can predict the spontaneity of a system. If deltaG>0, the change is non-spontaneous. If deltaG<0, the change is spontaneous.