## TEXTBOOK 11.83

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

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

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

Yiwei Zhou 2I
Posts: 21
Joined: Fri Sep 29, 2017 7:07 am

### TEXTBOOK 11.83

"Calculate the equilibrium constant at 25 C and at 150 C for each of the following reactions, using data available in Appendix 2A"

When can we calculate the equilibrium constant deltaG with Gibbs Free Energy of Formation in Appendix 2?
When can't we?

aTirumalai-1I
Posts: 55
Joined: Thu Jul 27, 2017 3:00 am
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### Re: TEXTBOOK 11.83

You can calculate the deltaG with the Gibbs Free Energy of Formations in Appendix 2 only for questions involving standard conditions. In other words, for 11.83, you can only use Appendix 2 for 25 degrees.

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