Entropy Calculator Entropy Calculator Entropy Calculator Calculate Reaction Entropy (ΔS) Unknown Entropy (S) Reactants: [Formula, Coeff, S] (e.g., [H2,2,0.1306],[O2,1,0.2050]) Products: [Formula, Coeff, S] (e.g., [H2O,2,0.1888]) Reaction Entropy (ΔS, kJ/mol·K) Known Reactants: [Formula, Coeff, S] Known Products: [Formula, Coeff, S] Unknown: [Formula, Coeff] Calculate Regular Price Amazon Price Success Journey with High Performance MaxCalculator