## Standard State with Nernst Equation

$E_{cell} = E_{cell}^{\circ}-\frac{RT}{nF}\ln Q$

Sarah Sharma 2J
Posts: 33
Joined: Fri Sep 29, 2017 7:05 am

### Standard State with Nernst Equation

When given a reaction and we are asked to calculate using the Nernst equation, when can we assume that it is in standard state if it doesn't specify?

Payton Schwesinger 1J
Posts: 45
Joined: Fri Sep 29, 2017 7:04 am

### Re: Standard State with Nernst Equation

I think you assume that it is standard states unless it is otherwise specified- for anything that is not in standard state they usually give you the concentrations/partial pressures.

Ivy Lu 1C
Posts: 54
Joined: Thu Jul 27, 2017 3:00 am

### Re: Standard State with Nernst Equation

It should be safe to assume that that it's in standard state, if no additional information about concentration or partial pressure is given.

Angel Gomez 1K
Posts: 36
Joined: Fri Sep 29, 2017 7:04 am

### Re: Standard State with Nernst Equation

I believe that the simplified equation of E=Enot-RT/nF*lnQ, which is E=Enot-0.00591/n * log Q, is given to us specifically so that we don't have to plug in values for T, since it's simplified for use under STP.

kaushalrao2H
Posts: 63
Joined: Thu Jul 13, 2017 3:00 am
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### Re: Standard State with Nernst Equation

only assume that the reaction is not at standard conditions when the prompt itself gives some conditions (such as varying concentrations of reactant/product).

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