Gibbs Free Energy: Why Must It Be >0 for Reaction?

[asdf1]

Why must Gibbs Free Energy >0 for a reaction to occur?

 

[Andrew Mason]

Why must Gibbs Free Energy >0 for a reaction to occur?

Have a look at http://en.wikipedia.org/wiki/Gibbs_free_energy" which explains the origin of the concept of Gibbs Free Energy. If the Gibbs Free energy is less than 0, the reaction will not result in heat being available to do useful work.

AM

 

[asdf1]

thank you!