Cell Potential and Free Energy

AP Chemistry· difficulty 4/5

A galvanic cell will operate spontaneously when

  • A

    ΔG > 0

  • B

    K < 1

  • C

    E°cell > 0 (corresponds to ΔG < 0)

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  • D

    E°cell < 0

Explanation

ΔG° = −nFE°cell. Positive E°cell ↔ negative ΔG° ↔ K > 1 ↔ spontaneous as written.

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