Free energy change at equilibrium is____________________?
Correct answer: D. Zero
- A. Indeterminate
- B. Positive
- C. Negative
- D. Zero
Explanation
At equilibrium, the system is at a minimum of Gibbs free energy under constant temperature and pressure, so the driving force for change is zero and ΔG = 0. A negative value would indicate that the process can proceed spontaneously toward equilibrium.
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