## Factors

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

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

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

Courtney McHargue 1I
Posts: 56
Joined: Fri Sep 28, 2018 12:17 am

### Factors

What factors influence the value of delta G in a reaction? Is it mainly influenced by what's present in the reaction or what is produced/given off?

Jessica Chen 1F
Posts: 61
Joined: Fri Sep 28, 2018 12:17 am

### Re: Factors

Since delta G is calculated for by the equation delta G = delta H - T(delta S), the factors that affect delta G are the enthalpy of reaction, the temperature that the reaction takes place at, and the entropy. A negative enthalpy, high temperature, and high entropy makes for a spontaneous reaction (negative delta G), while the opposites make for a nonspontaneous reaction (positive delta G).

Ian Marquez 2K
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Joined: Fri Sep 28, 2018 12:16 am
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### Re: Factors

Like said above, if you look at the individual factors that determine what delta G is in the equations, inferences can be made such as higher temperatures leading to a greater chance of a reaction being spontaneous or a negative enthalpy change.