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Gibbs Free Energy and Spontaneity

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

Gibbs free energy change is the difference between enthalpy change and the product of temperature and entropy change.

$\Delta G$

Change in Gibbs free energy

Joules

$\Delta H$

Change in enthalpy

JoulesT

Temperature

Kelvin

$\Delta S$

Change in entropy

Joules per Kelvin

Gibbs free energy determines the spontaneity of a process. A negative $ \Delta G $ indicates a spontaneous process.

Predicting reaction spontaneity and calculating maximum work obtainable from a process.

Gibbs Free Energy

Spontaneity

Thermodynamics

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Large number of questions are asked from these following sections: