Fuel cells

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SunjinKim1A
Posts: 7
Joined: Fri Sep 25, 2015 3:00 am

Fuel cells

Postby SunjinKim1A » Fri Mar 11, 2016 10:11 pm

What does it mean for a fuel cell to be thermodynamically feasible?

Orly Termeie 3I
Posts: 94
Joined: Fri Sep 25, 2015 3:00 am

Re: Fuel cells

Postby Orly Termeie 3I » Fri Mar 11, 2016 10:17 pm

If Delta G is negative the fuel cell would be feasible and thus, the cell potential would have to be positive. Since the products would have a lower energy than the reactants which is favorable.

Thomas Gimeno
Posts: 95
Joined: Wed Sep 30, 2020 9:49 pm

Re: Fuel cells

Postby Thomas Gimeno » Sun Jan 24, 2021 9:20 pm

The reaction in the fuel cell would have to be spontaneous (aka negative delta G)

Gicelle Rubin 1E
Posts: 101
Joined: Fri Oct 02, 2020 12:16 am

Re: Fuel cells

Postby Gicelle Rubin 1E » Thu Feb 04, 2021 9:05 pm

Orly Termeie 3I wrote:If Delta G is negative the fuel cell would be feasible and thus, the cell potential would have to be positive. Since the products would have a lower energy than the reactants which is favorable.


Thank you for explaining it! :D

Andrew Yoon 3L
Posts: 102
Joined: Wed Sep 30, 2020 9:36 pm

Re: Fuel cells

Postby Andrew Yoon 3L » Sun Feb 14, 2021 8:34 pm

A fuel cell is thermodynamically feasible when ΔG is negative, which would mean it would be spontaneous.

Dane_Beasley_1E
Posts: 74
Joined: Wed Sep 30, 2020 9:42 pm

Re: Fuel cells

Postby Dane_Beasley_1E » Sun Feb 14, 2021 9:38 pm

When delta G is negative (or spontaneous), the fuel cell is thermodynamically feasible.

Susan Chamling 1F
Posts: 101
Joined: Wed Sep 30, 2020 9:42 pm

Re: Fuel cells

Postby Susan Chamling 1F » Mon Feb 15, 2021 12:19 am

A thermodynamically feasible fuel cell is when the reaction is spontaneous, implying that it has a negative ΔG.

Tara Cumiskey 3K
Posts: 106
Joined: Fri Sep 24, 2021 5:11 am

Re: Fuel cells

Postby Tara Cumiskey 3K » Sun Jan 30, 2022 7:27 pm

It happens when delta G is negative which implies spontaneity.

Ashwin Vasudevan 3A
Posts: 121
Joined: Fri Sep 24, 2021 5:57 am

Re: Fuel cells

Postby Ashwin Vasudevan 3A » Mon Jan 31, 2022 6:26 pm

Thermodynamically feasible means that according to all that we know about energy and entropy changes in reactions it is reasonable to suppose that something can happen.

Brandon Padilla 2L
Posts: 84
Joined: Fri Sep 24, 2021 5:02 am

Re: Fuel cells

Postby Brandon Padilla 2L » Fri Feb 04, 2022 11:51 am

It means the Delta G must be positive in order to induce a spontaneous reaction.

305561744
Posts: 99
Joined: Fri Sep 24, 2021 7:14 am

Re: Fuel cells

Postby 305561744 » Sun Feb 13, 2022 2:09 pm

A negative delta G would make it a spontaneous process, as it is past the threshold for spontaneity of Gibbs Free Energy.

106024424
Posts: 31
Joined: Mon Jan 09, 2023 2:33 am

Re: Fuel cells

Postby 106024424 » Wed Feb 22, 2023 12:58 pm

Does this occur isothermally? Does it matter?

Moselle Stieler 3A
Posts: 30
Joined: Mon Jan 09, 2023 9:42 am

Re: Fuel cells

Postby Moselle Stieler 3A » Mon Mar 20, 2023 11:50 am

What exactly does thermodynamically feasible refer to? I understand that something is thermodynamically feasible when delta G is negative, but I'm still a little confused.


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