Gibbs Free Energy Calculator (ΔG = ΔH - TΔS)

Gibbs Free Energy Calculator (ΔG = ΔH - TΔS) CalculatorScale.com

Input Parameters

Instant Real-time Calculation

Enthalpy Change (ΔH in kJ/mol)

Absolute Temperature (Kelvin)

Entropy Change (ΔS in J/(mol·K))

Result Chemistry

Gibbs Free Energy (ΔG)

-- kJ/mol

Export calculation:

Calculation Logic:

Thermodynamic criterion for spontaneity at constant temperature and pressure. When ΔG < 0, the forward reaction is spontaneous (exergonic). When ΔG > 0, it is non-spontaneous (endergonic).