What is the relationship between ΔH and ΔG at equilibrium?

Practice Questions

Q1
What is the relationship between ΔH and ΔG at equilibrium?
  1. ΔG = 0
  2. ΔH = 0
  3. ΔG = ΔH
  4. ΔG = ΔH + TΔS

Questions & Step-by-Step Solutions

What is the relationship between ΔH and ΔG at equilibrium?
  • Step 1: Understand that ΔH represents the change in enthalpy, which is the total heat content of a system.
  • Step 2: Understand that ΔG represents the change in Gibbs free energy, which indicates the spontaneity of a reaction.
  • Step 3: Know that at equilibrium, a chemical reaction has reached a state where the forward and reverse reactions occur at the same rate.
  • Step 4: Recognize that at equilibrium, there is no net change in the concentrations of reactants and products.
  • Step 5: Realize that when a system is at equilibrium, the change in Gibbs free energy (ΔG) is zero, meaning the system is stable.
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