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What does Gibbs Free Energy change $\Delta G = \Delta H - T\Delta S$ indicate regarding reaction spontaneity?

Study flashcard from the deck NEET UG High-Yield Review (Biology, Physics, Chemistry).

Answer

If $\Delta G < 0$, the process is spontaneous; if $\Delta G = 0$, the system is in equilibrium; if $\Delta G > 0$, the forward process is non-spontaneous.

Explanation

An exothermic reaction ($\Delta H < 0$) with positive entropy ($\Delta S > 0$) is spontaneous at all temperatures.

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