Gibbs


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406003397
Posts: 58
Joined: Mon Jan 09, 2023 2:04 am

Gibbs

Postby 406003397 » Fri Mar 15, 2024 8:16 pm

When considering a spontaneous reaction in an electrochemical cell, how does the Gibbs free energy? Could someone clarify the mathematical relationship and its significance in predicting the spontaneity of electrochemical reactions?

506005126
Posts: 47
Joined: Mon Jan 09, 2023 1:23 am

Re: Gibbs

Postby 506005126 » Fri Mar 15, 2024 8:17 pm

Gibbs free energy change and the Nernst equation are essential tools in predicting the spontaneity and feasibility of electrochemical reactions, providing a mathematical basis for understanding the underlying thermodynamics of these processes.

Janelle2E
Posts: 41
Joined: Fri Sep 29, 2023 9:37 am

Re: Gibbs

Postby Janelle2E » Mon Mar 18, 2024 12:05 am

The Gibbs free energy equation provides a mathematical means for determining whether a reaction will proceed spontaneously or non-spontaneously. A negative ΔG indicates a spontaneous reaction, while a positive ΔG indicates a non-spontaneous reaction. The Nernst Equation helps calculate cell potentials under non-standard conditions: E = E° - (RT/nF) * ln(Q). A positive E°cell suggests a spontaneous reaction, and a negative E°cell suggests a non-spontaneous reaction


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