E° vs E


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Anthony Hatashita 4H
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Joined: Wed Sep 18, 2019 12:21 am

E° vs E

Postby Anthony Hatashita 4H » Fri Mar 06, 2020 12:00 am

What's the difference between these two?

Jacey Yang 1F
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Joined: Fri Aug 09, 2019 12:17 am

Re: E° vs E

Postby Jacey Yang 1F » Fri Mar 06, 2020 12:15 am

E°is the cell potential under standard conditions, while E is under non-standard conditions.

Subashni Rajiv 1K
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Joined: Wed Sep 18, 2019 12:16 am

Re: E° vs E

Postby Subashni Rajiv 1K » Fri Mar 06, 2020 12:22 am

Standard conditions are at 25 degrees Celsius and 1M or 1 bar/atm.

Jialun Chen 4F
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Joined: Sat Sep 07, 2019 12:16 am

Re: E° vs E

Postby Jialun Chen 4F » Fri Mar 06, 2020 1:38 am

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.

Miriam Villarreal 1J
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Joined: Sat Aug 17, 2019 12:16 am

Re: E° vs E

Postby Miriam Villarreal 1J » Fri Mar 06, 2020 10:33 am

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

Rodrigo2J
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Joined: Sat Jul 20, 2019 12:16 am

Re: E° vs E

Postby Rodrigo2J » Fri Mar 06, 2020 10:37 am

E° is the cell potential under standard conditions (i.e. 298K, 1 atm, and 1M).

Abby Soriano 1J
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Joined: Sat Aug 24, 2019 12:16 am

Re: E° vs E

Postby Abby Soriano 1J » Fri Mar 06, 2020 10:38 am

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.

Mariah
Posts: 104
Joined: Fri Aug 02, 2019 12:16 am

Re: E° vs E

Postby Mariah » Fri Mar 06, 2020 11:02 am

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.


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