A concentration cell is a type of electrochemical cell that generates an electromotive force (EMF) due to a difference in concentration of ions in two half-cells that are connected by a conductive medium. This setup allows for the spontaneous movement of ions from an area of higher concentration to one of lower concentration, resulting in a flow of electrons and the production of electrical energy. Understanding concentration cells is essential when looking at concepts like membrane potentials, cell notation, and different types of electrochemical cells.
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