Chemistry

GibbsFreeEnergyCalculator

Calculate Gibbs free energy change (ΔG) to determine if a reaction is spontaneous.

Gibbs Free Energy Calculator

Calculate ΔG = ΔH - TΔS

Enthalpy Change ΔH (kJ/mol)

Temperature (K)

Entropy Change ΔS (kJ/mol·K)

Results

Enter values to calculate

Formula:

ΔG = ΔH - TΔS

Negative ΔG = Spontaneous

Understanding Gibbs Free Energy

Gibbs free energy (ΔG) determines if a process is spontaneous. A negative ΔG means the reaction is spontaneous, while a positive ΔG means it's non-spontaneous.