Cell potential, also known as electromotive force (emf), measures how much voltage difference there is between two half-cells in an electrochemical cell. It indicates how much driving force there is for a redox reaction to occur.
Voltage Difference: The difference in electric potential between two points, which motivates electron flow forming current.
Galvanic Cell: Also known as voltaic cells, these are devices in which spontaneous oxidation-reduction reactions produce electrical energy.
Nernst Equation: An equation that relates the reduction potential of an electrochemical reaction (half-cell or full cell reaction) to the standard electrode potential, temperature, and activities (often approximated by concentrations) of the chemical species undergoing reduction and oxidation.
AP Chemistry - 9.7 Galvanic (Voltaic) and Electrolytic Cells
Which of the following is true about the relationship between cell potential (Ecell) and free energy change (ΔG)?
Which of the following is true about the relationship between the cell potential (Ecell) and the concentration of reactants and products in an electrochemical cell?
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