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Chemistry · Glossary

What is Concentration cell?

Definition 9.16 University Chemistry — Year 2 · Chapter 9 — Thermodynamics of Electrochemical Cells

A concentration cell is made of two half-cells of the same couple that differ only in the concentration (or pressure) of one species.

A silver concentration cell at 25 C. The dilute side is the anode: silver dissolves there and is deposited on the concentrated side, until the two concentrations are equal. U = 0.0592 (0.10/0.010) = 59\, mV.
A silver concentration cell at 25∘C25{}^{\circ}\mathrm{C}. The dilute side is the anode: silver dissolves there and is deposited on the concentrated side, until the two concentrations are equal. U=0.0592log⁡(0.10/0.010)=59 mVU = 0.0592\log(0.10/0.010) = 59\,\mathrm{mV}.
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