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Galvanic Cell definitions

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  • Galvanic Cell
    A type of electrochemical cell that converts chemical energy into electrical energy through spontaneous redox reactions.
  • Anode
    The electrode where oxidation occurs, losing electrons and typically dissolving over time in a galvanic cell.
  • Cathode
    The electrode where reduction occurs, gaining electrons and mass as cations are attracted to it in a galvanic cell.
  • Redox Reaction
    A chemical reaction involving the transfer of electrons, with oxidation and reduction processes.
  • Salt Bridge
    A device that allows the flow of ions to maintain charge balance in a galvanic cell, preventing charge build-up.
  • Standard Cell Potential
    The voltage difference between two electrodes under standard conditions, indicating the cell's ability to produce electricity.
  • Equilibrium
    The state in a galvanic cell when it has discharged all electricity, with no net electron flow, often called a dead battery.
  • Ionization Energy
    The energy required to remove an electron from an atom or ion, influencing electron flow in electrochemical cells.
  • Electron Affinity
    The tendency of an atom to attract electrons, important for the cathode in a galvanic cell to gain electrons.
  • Entropy
    A measure of disorder or randomness, with positive change indicating spontaneity in a galvanic cell.
  • Gibbs Free Energy
    A thermodynamic quantity indicating the spontaneity of a reaction, negative in a galvanic cell.
  • Equilibrium Constant
    A value greater than one in a galvanic cell, indicating a spontaneous reaction.
  • Reaction Quotient
    A measure used to determine the direction of reaction progress relative to equilibrium.
  • Electrolytic Cell
    A non-spontaneous electrochemical cell that requires an external power source to drive reactions.
  • Plating
    The process where dissolved ions solidify on the cathode, increasing its mass in a galvanic cell.