## Clarification on what temperature reaction will be spontaneous

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

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

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

Samantha Chung 4I
Posts: 77
Joined: Wed Oct 03, 2018 12:16 am

### Clarification on what temperature reaction will be spontaneous

Just to clarify, but if a question asks: at what temperature X reaction will be spontaneous, and the answer based on inequalities is anything below temperature Y for instance, do I write that, or can I just write any number?

Jennifer Su 2L
Posts: 47
Joined: Wed Nov 21, 2018 12:20 am

### Re: Clarification on what temperature reaction will be spontaneous

You should solve for Temperature "Z" where deltaG=0 and explain that the reaction is at equilibrium at this point. Then to answer the question, you should write it as an inequality (ie: when Temperature> tempZ, the reaction is spontaneous in the forward direction). If you want to be extra, you can give an example of a temperature where the reaction is spontaneous, but I'm pretty sure you don't need to.