## Dissolving

$\Delta G^{\circ} = -nFE_{cell}^{\circ}$

Janice Xiao 1I
Posts: 52
Joined: Thu Jul 13, 2017 3:00 am

### Dissolving

When do you know that a gold ring will dissolve based off of delta G standard?

Fatima_Iqbal_2E
Posts: 31
Joined: Fri Sep 29, 2017 7:06 am
Been upvoted: 1 time

### Re: Dissolving

When Dr. Lavelle showed us an example like this during lecture, we had not yet learned the Nernst equation, so you could use $\Delta G^{o} = -nFE^{o}$ to see if the reaction is spontaneous or not. If the $\Delta G^{o}$
is positive, the reaction would be unfavorable, and the ring would not dissolve. However, if the $\Delta G^{o}$ is negative, then we know that the reaction is favorable and spontaneous, and the ring will dissolve.

Nancy Le - 1F
Posts: 52
Joined: Fri Sep 29, 2017 7:07 am

### Re: Dissolving

Can we assume that any spontaneous reaction will dissolve? Does this apply to only this reaction?