Enthalpy Calculator Enthalpy Calculator Enthalpy Calculator Calculate Reaction Enthalpy (ΔH) Unknown Enthalpy of Formation (ΔH_f) Reactants: [Formula, Coeff, ΔH_f] (e.g., [H2,2,-285.8],[O2,1,0]) Products: [Formula, Coeff, ΔH_f] (e.g., [H2O,2,-241.8]) Reaction Enthalpy (ΔH, kJ/mol) Known Reactants: [Formula, Coeff, ΔH_f] Known Products: [Formula, Coeff, ΔH_f] Unknown: [Formula, Coeff] Calculate Regular Price Amazon Price Success Journey with High Performance MaxCalculator