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Gibbs Free Energy Calculator
Calculate $\Delta G$ to determine thermodynamic spontaneity
Formula: $\Delta G = \Delta H - T\Delta S$
A negative $\Delta G$ indicates a spontaneous (exergonic) reaction, while a positive $\Delta G$ indicates a non-spontaneous (endergonic) reaction.
A negative $\Delta G$ indicates a spontaneous (exergonic) reaction, while a positive $\Delta G$ indicates a non-spontaneous (endergonic) reaction.
Thermodynamic Parameters
Calculation Results
⚠️ This calculation assumes that $\Delta H$ and $\Delta S$ remain constant across the chosen temperature range. In reality, large temperature variations can alter the heat capacities ($C_p$) of the reactants and products, slightly shifting standard enthalpy and entropy values.