Gibbs Free Energy (AQA A-Level Chemistry): Flashcards

Predicts feasibility from $\Delta H$ and $\Delta S$

$\Delta G = \Delta H - T\Delta S$

Zero or negative

Spontaneous reaction

Reaction at equilibrium

$\Delta H < 0$ (releases energy)

$\Delta S > 0$ (increases disorder)

Divide by 1000

$T = \frac{\Delta H}{\Delta S}$

$\Delta S = \frac{\Delta H}{T}$