## Gibbs and concepts

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

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

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

Miriam Sheetz 2B
Posts: 64
Joined: Fri Sep 28, 2018 12:25 am

### Gibbs and concepts

What sort of conceptual things would we have to know regarding Gibbs Free Energy? Just wondering how we may have to apply it on a test.

Hedi Zappacosta 1E
Posts: 66
Joined: Fri Sep 28, 2018 12:27 am

### Re: Gibbs and concepts

You should probably know the values at which delta H and delta S will create a spontaneous reaction

Charles Hood Disc 1C
Posts: 39
Joined: Fri Sep 28, 2018 12:19 am

### Re: Gibbs and concepts

You will also probably need to know if a reaction is exergonic or endergonic based on the value of G.

Felicia1E
Posts: 31
Joined: Fri Sep 28, 2018 12:22 am

### Re: Gibbs and concepts

In addition, another concept that is good to keep in the back of your mind which Dr. Lavelle covered in lecture is that the numerical value of G has no bearing on how fast the reaction is happening. For example, a reaction with delta G = -344 kJ/mole is not necessarily happening at a faster rate that a reaction with delta G = -23 kJ/mole.

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