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JAMB Chemistry 2002 Question 9

Question 9

Energy Changes

Which of the following equations shows that a reaction is in equilibrium?

  1. A.ΔG < 0
  2. B.ΔG = ΔH − TΔS
  3. C.ΔG > 0
  4. D.ΔG = 0
Show the answer and explanation

Answer: D (ΔG = 0)

Explanation

At equilibrium there is no driving force in either direction, so the free energy change ΔG is zero.