Free Energy and Equilibrium

AP Chemistry· difficulty 3/5

+ΔG° -ΔG° ln K K=1

From ΔG° = -RT ln K, what is ΔG° when K = 1?

  • A

    ΔG° < 0

  • B

    Indeterminate without T

  • C

    ΔG° > 0

  • D

    ΔG° = 0

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Explanation

ln(1) = 0, so ΔG° = -RT(0) = 0 regardless of T.

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