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### reaction at equilibrium

Posted: Tue Feb 18, 2020 7:07 pm
why is delta G equal to zero when a reaction is at equilibrium?

### Re: reaction at equilibrium

Posted: Tue Feb 18, 2020 7:13 pm
Since Gibbs free energy is a measure of energy available to do work, when the reaction is at equilibrium, no more work is being done and therefore delta G is 0.

### Re: reaction at equilibrium

Posted: Tue Feb 18, 2020 7:26 pm
No work is being done at equilibrium so the delta G value is 0.

### Re: reaction at equilibrium

Posted: Tue Feb 18, 2020 7:45 pm
We calculate delta G by doing G of products - G of reactants. If at equilibrium, the G between products and reactants doesn't change. Therefore, delta G = 0

### Re: reaction at equilibrium

Posted: Tue Feb 18, 2020 8:59 pm
Clara Cho 2K wrote:why is delta G equal to zero when a reaction is at equilibrium?

Gibbs Free Energy is a measure of the reaction's tendency to proceed in a given direction (i.e. towards the reactants or towards the products). Since neither side of the reaction is favored at equilibrium, delta G is equal to 0.

### Re: reaction at equilibrium

Posted: Tue Feb 18, 2020 9:06 pm
Delta G is zero when an equation is at equilibrium because it has no tendency to shift to the reactant or product side but rather just stay as it is.

### Re: reaction at equilibrium

Posted: Tue Feb 18, 2020 9:12 pm
No work is being done at equilibrium and delta g represents the energy left to do work. Therefore, delta g is 0.