Spontaneity in a cell reaction
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Spontaneity in a cell reaction
What can the relation between Ecell and delta G tell me about whether a cell reaction is spontaneous?
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Re: Spontaneity in a cell reaction
I'm pretty sure delta G alone can tell you if the reaction is spontaneous. If delta G is positive, then the reaction is non-spontaneous. If delta G is negative, then the reaction is spontaneous.
I'm not sure if I answered what you were looking for, but I hope this helps!
I'm not sure if I answered what you were looking for, but I hope this helps!
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- Posts: 39
- Joined: Fri Sep 29, 2017 7:07 am
Re: Spontaneity in a cell reaction
However, if you didn't know either delta G or Ecell, then you can use the equation
to find tif you know the other one.
to find tif you know the other one.
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Re: Spontaneity in a cell reaction
Based on the equation Matt gave, if Ecell is positive, Delta G is negative = spontaneous. If Ecell is negative, Delta G is positive = nonspontaneous.
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Re: Spontaneity in a cell reaction
dG=-nFE
E is standard cell potential that needs to be positive so that dG could be negative, which is what we want for spontaneity
E is standard cell potential that needs to be positive so that dG could be negative, which is what we want for spontaneity
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