NEET Chemistry
NEETChemistryChemical ThermodynamicsClass 11

When do I use ΔG = ΔH − TΔS in Chemical Thermodynamics, and what does it mean?

Gibbs free energy change deciding spontaneity.

ΔG = ΔH − TΔS — Gibbs free energy change deciding spontaneity. Use it when: constant temperature and pressure. Always check the condition holds before plugging in numbers.

Key point

ΔG = ΔH − TΔS

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