Relationship between free energy and cell potential?


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Hannah Lee 2F
Posts: 117
Joined: Thu Jul 11, 2019 12:15 am

Relationship between free energy and cell potential?

Postby Hannah Lee 2F » Tue Feb 18, 2020 10:53 pm

Can someone conceptually explain the relationship between free energy G and cell potential?

Isha_Maniyar_Dis2E
Posts: 110
Joined: Thu Jul 11, 2019 12:16 am

Re: Relationship between free energy and cell potential?

Postby Isha_Maniyar_Dis2E » Wed Feb 19, 2020 12:21 am

When G is negative, the reaction will occur spontaneously. However, when it is positive, energy must be put in for the reaction to occur. When G is 0, the reaction is at equilibrium (this is when your battery would be dead).

nicole-2B
Posts: 103
Joined: Fri Aug 30, 2019 12:18 am

Re: Relationship between free energy and cell potential?

Postby nicole-2B » Wed Feb 19, 2020 11:04 am

Gibbs free energy is related to cell potential by the equation: ΔG°cell = −nFE°cell. If E°cell > 0, then the process is spontaneous. If E°cell < 0, then the process is nonspontaneous


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