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E° vs E

Posted: Fri Mar 06, 2020 12:00 am
by Anthony Hatashita 4H
What's the difference between these two?

Re: E° vs E

Posted: Fri Mar 06, 2020 12:15 am
by Jacey Yang 1F
E°is the cell potential under standard conditions, while E is under non-standard conditions.

Re: E° vs E

Posted: Fri Mar 06, 2020 12:22 am
by Subashni Rajiv 1K
Standard conditions are at 25 degrees Celsius and 1M or 1 bar/atm.

Re: E° vs E

Posted: Fri Mar 06, 2020 1:38 am
by Jialun Chen 4F
Enaught is a fixed value for one reaction under standard condition, while E can vary as temperature or concentration of the substances in a reaction changes.

Re: E° vs E

Posted: Fri Mar 06, 2020 10:33 am
by Miriam Villarreal 1J
Ecell = cell potential at non-standard state conditions which can be derived from Ecell = Eocell - (RT/nF) ln Q
Eocell = standard state cell potential and can be derived from Eocell=RTlnk

Re: E° vs E

Posted: Fri Mar 06, 2020 10:37 am
by Rodrigo2J
E° is the cell potential under standard conditions (i.e. 298K, 1 atm, and 1M).

Re: E° vs E

Posted: Fri Mar 06, 2020 10:38 am
by Abby Soriano 1J
The standard cell potential can be figured out through given values and occurs at standards conditions. The cell potential can occur at any condition and can be figured out if you know the standard cell potential and the value of Q.

Re: E° vs E

Posted: Fri Mar 06, 2020 11:02 am
by Mariah
Anthony Hatashita 4H wrote:What's the difference between these two?


Whenever you see the not symbol, it means that it is under standard conditions.