Concentration Cells
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Concentration Cells
How does a potential difference arise in a concentration cell if each electrode has the same substance? A conceptual explanation would be preferred.
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Re: Concentration Cells
I believe the difference in concentration creates a potential difference because on one end reduction occurs, and on the other oxidation is occurring which allows for the travel of electrons and in turn allows for current to flow.
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Re: Concentration Cells
From the lecture example- if you have a concentration cell with the anode side= 0.1M solution and cathode side = 1.0M solution, the concentration of the 1.0M solution will decrease (reactant) and the concentration of the 0.1M solution will increase (product). With the equation , and K being , you get a cell potential. Even though each electrode has the same substance, there is still electron flow.
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