Section 3
Gibbs Free Energy
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Version 33
By Boundless
By Boundless
Boundless Chemistry
Chemistry
by Boundless
5 concepts
![Thumbnail](../../../../../../figures.boundless-cdn.com/13928/square/standard-20gibbs.jpeg)
Standard Free Energy Changes
The standard Gibbs Free Energy is calculated using the free energy of formation of each component of a reaction at standard pressure.
Free Energy Changes in Chemical Reactions
ΔG determines the direction and extent of chemical change.
![Thumbnail](../../../../../../figures.boundless-cdn.com/13926/square/delta-20g-20nonstandard.jpeg)
Free Energy Changes for Nonstandard States
A single reaction can have an infinite number of ΔG values, reflecting the infinite possible compositions between reactants and products.
![Thumbnail](../../../../../../figures.boundless-cdn.com/13937/square/gibbs-20pressure.jpeg)
Pressure and Free Energy
Gibbs free energy is dependent on pressure.
![Thumbnail](../../../../../../figures.boundless-cdn.com/13939/square/work-20gibbs.jpeg)
Free Energy and Work
The Gibbs free energy is the maximum amount of non-expansion work that can be extracted from a closed system.