When an electrochemical cell reaches equilibrium, what is the measured cell potential?

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  • 5 months ago

    it should be 0. there is no preferential transfer of energy in either way, the back and forth processes are in balance, equal in magnitude. no net change is possible without changing conditions.

  • 5 months ago

    Depends on the chemicals of the cell.

    The Standard (Hydrogen) Cell is by definition 0V.

    The cell operates at 1tm pressure. 1M solution at 25 degrees C .

  • 5 months ago

    Zero ........A voltaic cell at equilibrium has run down and no longer produces a potential difference .... "The battery is dead."

    Gibbs free energy

    ΔG° = -nFE°

    At equilibrium ΔG° is zero, therefore E° must be zero.

  • 5 months ago

    Zero......equilibrium means equal. Not negative, not positive.

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