• In order to function, any electrochemical cell must consist of two half-cells.
  • Table below can be used to determine the reactions that will occur.
  • The half-cell with the higher reduction potential according to the table will undergo reduction within the cell.
  • If those specifications are followed, the overall cell potential will be a positive value.
  • The cell potential must be positive in order for redox reaction of the cell to be spontaneous.
  • If a negative cell potential were to be calculated, that reaction would be spontaneous in the reverse direction.
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