Usage for Nernst equation


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Abigail Menchaca_1H
Posts: 104
Joined: Sat Sep 07, 2019 12:19 am

Usage for Nernst equation

Postby Abigail Menchaca_1H » Mon Feb 24, 2020 10:37 am

What does it mean by non standard conditions when determining the direction of electron transfer?

Kate Osborne 1H
Posts: 102
Joined: Fri Aug 30, 2019 12:16 am

Re: Usage for Nernst equation

Postby Kate Osborne 1H » Mon Feb 24, 2020 11:10 am

standard conditions are a specific ratio of products to reactants and if the ratio is not that then you have to use the nernst equation

Elizabeth Harty 1A
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Re: Usage for Nernst equation

Postby Elizabeth Harty 1A » Mon Feb 24, 2020 11:22 am

What is the Nernst equation used for

Vicki Liu 2L
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Joined: Sat Aug 24, 2019 12:15 am

Re: Usage for Nernst equation

Postby Vicki Liu 2L » Mon Feb 24, 2020 11:39 am

The Nernst equation is used to determine the nonstandard cell potential. Given the standard cell potential, you can use the equation to determine how cell potential changes in relation to temperature and concentrations of the species.

sarahforman_Dis2I
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Re: Usage for Nernst equation

Postby sarahforman_Dis2I » Mon Feb 24, 2020 11:55 am

Abigail Menchaca_1H wrote:What does it mean by non standard conditions when determining the direction of electron transfer?


Just to clarify, standard conditions normally means 25 C, 1 atm and 1 M. The equation is used to find the cell potential when the cell is not under these conditions (eg 2 M or 50 C)

Jack Riley 4f
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Re: Usage for Nernst equation

Postby Jack Riley 4f » Mon Feb 24, 2020 12:03 pm

it is used to find the nonstandard cell potential

805097738
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Re: Usage for Nernst equation

Postby 805097738 » Mon Feb 24, 2020 2:37 pm

Kate Osborne 1H wrote:standard conditions are a specific ratio of products to reactants and if the ratio is not that then you have to use the nernst equation


are you referring to K? what else would a specific ratio be

Robin Cadd 1D
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Re: Usage for Nernst equation

Postby Robin Cadd 1D » Mon Feb 24, 2020 7:24 pm

805097738 wrote:
Kate Osborne 1H wrote:standard conditions are a specific ratio of products to reactants and if the ratio is not that then you have to use the nernst equation


are you referring to K? what else would a specific ratio be

I’m pretty sure standard conditions are just 1 M and 25°C.


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