What is the relationship between Gibbs Free Energy and spontaneity?
Correct Answer: A negative ΔG indicates spontaneity.
- Step 1: Understand Gibbs Free Energy (ΔG). It is a measure of the energy available to do work in a system.
- Step 2: Know that ΔG can be positive, negative, or zero.
- Step 3: A negative ΔG (less than 0) means that the reaction can happen on its own without needing extra energy.
- Step 4: A positive ΔG (greater than 0) means that the reaction needs energy to occur and is not spontaneous.
- Step 5: If ΔG is zero, the system is at equilibrium, meaning no net change occurs.
- Step 6: Therefore, if you see a negative ΔG, you can conclude that the reaction is spontaneous.
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