Gibbs Free energy and photosynthesis

$\Delta G^{\circ} = -nFE_{cell}^{\circ}$

shouse1f
Posts: 63
Joined: Fri Sep 28, 2018 12:18 am

Gibbs Free energy and photosynthesis

On test 2 there was a question regarding if delta G was greater than, equal to or less than zero for the photosynthesis of glucose, could someone explain why the answer was that delta G <0

ariana_apopei1K
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Re: Gibbs Free energy and photosynthesis

I was also wondering this, when I look it up online I see a lot of people say it's non-spontaneous

Sophia Ding 1B
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Joined: Fri Sep 28, 2018 12:16 am

Re: Gibbs Free energy and photosynthesis

Yeah at first I was thinking it'd be spontaneous because plants photosynthesize "automatically," but then it's also because of the energy of the sun that they are able to do this. Thus I would agree, that this reaction would be non spontaneous.

shouse1f
Posts: 63
Joined: Fri Sep 28, 2018 12:18 am

Re: Gibbs Free energy and photosynthesis

Thank you, that makes sense

Alexandra Albers 1D
Posts: 61
Joined: Fri Sep 28, 2018 12:18 am

Re: Gibbs Free energy and photosynthesis

So does the energy of the sun act like a catalyst? Or is it just providing heat to the reaction?