What does a negative ΔG indicate about a chemical reaction?

Practice Questions

Q1
What does a negative ΔG indicate about a chemical reaction?
  1. The reaction is at equilibrium.
  2. The reaction is non-spontaneous.
  3. The reaction is spontaneous.
  4. The reaction requires energy input.

Questions & Step-by-Step Solutions

What does a negative ΔG indicate about a chemical reaction?
  • Step 1: Understand what ΔG means. ΔG is the change in free energy of a reaction.
  • Step 2: Know that free energy is a measure of the energy available to do work in a system.
  • Step 3: Recognize that a negative ΔG value means that the free energy of the products is lower than that of the reactants.
  • Step 4: Realize that when ΔG is negative, it means the reaction can occur without needing extra energy input.
  • Step 5: Conclude that a negative ΔG indicates the reaction is spontaneous, meaning it can happen naturally under the given conditions.
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