Limitations of the nernst equation

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    Nernst equation
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Discussion Overview

The discussion focuses on the limitations of the Nernst equation in predicting cell potential values in electrochemical cells, particularly at low concentrations. Participants seek a deeper understanding of these limitations and inquire about additional resources for further exploration.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant notes that the Nernst equation does not provide accurate predictions of cell potential at low concentrations and seeks an explanation for this limitation.
  • Another participant suggests consulting serious sources, such as textbooks on electrochemistry, for more detailed information.
  • A different participant expresses concern about the cost of textbooks and questions the availability of online resources that might provide the needed information.
  • One reply indicates uncertainty about the existence of online sources but suggests trying a library as an alternative.

Areas of Agreement / Disagreement

Participants generally agree that the Nernst equation has limitations, particularly at low concentrations, but there is no consensus on the specific reasons or on the availability of adequate resources to explore these limitations further.

Contextual Notes

Participants express a need for more detailed explanations and resources, indicating potential limitations in available literature and the challenge of accessing comprehensive information without incurring costs.

Tedstain
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Oh hi there, first post. I'm looking into electrochemical cells and using to the nernst equation to predict cell potential values, and came across a few threads on the topic already on this forum (although none really answered my question), so thought this would be the place to ask.

I know that at low concentrations the nernst equation does not give a very accurate prediction of cell potential. I'm struggling to find anywhere that will give me a good in depth explanation as to why.
So yeah, could anyone point me in the right direction, or just explain to me here? Also what other limitations are there to the nernst equation?
Thanks for any help
 
Chemistry news on Phys.org
thanks, doesn't really go into enough detail though.
 
If you need details, check some serious source, like Electrochemistry by Hamann, Hamnett & Vielstich, or some equivalent book.
 
Don't really have £50 to spend on a book at the moment
Surely there must be some online sources I'm missing?
 
No idea about online sources - doesn't mean they don't exist.

If all else fails, try a library.
 

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