alleryIf K = 1 for a reaction, the standard free energy change ΔG°:
APositive
BZero
CNegative
DCannot be determined
Answer & Solution
Correct answer: B. Zero
ΔG° = -RT ln K. If K = 1, ln K = 0, so ΔG° = 0. At equilibrium for standard conditions, equilibrium constant equals 1.
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