What does “Gibbs free energy” actually mean in Chemical Thermodynamics, and why does it matter for JEE?
ΔG = ΔH − TΔS decides spontaneity — negative ΔG means the process is spontaneous.
In simple words: ΔG = ΔH − TΔS decides spontaneity — negative ΔG means the process is spontaneous. Getting Gibbs free energy clear matters because JEE questions on Chemical Thermodynamics usually test this idea directly, not just a formula you memorised.
Key point
Gibbs free energy
Common mistake
judging spontaneity from ΔH alone.
Memory tip
an endothermic reaction can still be spontaneous if TΔS is large enough.
Tap to watch or see it right here — the app stays open (it only opens a quick search if nothing embeddable is found).