What is the Gibbs Free Energy Calculator?

The Gibbs Free Energy Calculator determines the spontaneity of a chemical reaction by calculating ΔG (Gibbs free energy change) using the enthalpy change (ΔH), entropy change (ΔS), and temperature (T). It instantly evaluates whether a reaction is spontaneous, non-spontaneous, or at equilibrium, helping students, chemists, and researchers analyze reaction feasibility and thermodynamic behavior efficiently.

How to Use:

1. Enter Enthalpy Change (ΔH): Input the enthalpy change in kJ/mol.
2. Enter Entropy Change (ΔS): Input the entropy change in J/mol·K.
3. Enter Temperature (T): Provide the temperature in Kelvin (K).
4. Click “Calculate”: The calculator will display ΔG in kJ/mol along with the reaction’s spontaneity status.
5. Review the Result: Use this information to assess whether the reaction can proceed spontaneously under the given conditions.