Gibbs energy in equilibrium


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Kai Johnson 3B
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Joined: Fri Sep 29, 2023 12:14 pm
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Gibbs energy in equilibrium

Postby Kai Johnson 3B » Sun Mar 17, 2024 11:20 pm

would gibbs free energy of a reaction be 0 if q=k and if so why is that?

Reva Patel 2F
Posts: 88
Joined: Fri Sep 29, 2023 10:49 am

Re: Gibbs energy in equilibrium

Postby Reva Patel 2F » Sun Mar 17, 2024 11:22 pm

Yes. Gibbs free energy is 0 because there is no change in the concentration of products over reactants over time at equilibrium.
Last edited by Reva Patel 2F on Sun Mar 17, 2024 11:23 pm, edited 1 time in total.

Lan Wei 3I
Posts: 82
Joined: Fri Sep 29, 2023 11:18 am

Re: Gibbs energy in equilibrium

Postby Lan Wei 3I » Sun Mar 17, 2024 11:22 pm

Hi,

delta G, or the change in gibbs free energy, would be 0 if the system is at equilibrium. This is because when a rxn is at equilibirum, it doesn't shift towards the reactants or the products, so no work is being done.

Valeria Perez 3J
Posts: 82
Joined: Fri Sep 29, 2023 12:21 pm

Re: Gibbs energy in equilibrium

Postby Valeria Perez 3J » Sun Mar 17, 2024 11:24 pm

When Q=K, the reaction is at equilibrium. At equilibrium, the change in Gibbs Free energy is 0 because the system is not producing any energy that is available to do work. At equilibrium, your entropy and your enthalpy are also not changing, so your change in Gibbs free energy remains at 0.


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