It is sometimes difficult to obtain physically meaningful parameters from experimental data for a chemical system when the mathematical model describing the system involves nonlinear functions A simple method has been developed for the prediction of heat of reaction and equilibrium constants from experimental temperature time data of exothermic reversible processes in adiabatic conditions. The success of this new technique is demonstrated by predicting the heat of reaction and equilibrium constant as a function of temperature for ethanol acetic acid and propanol acetic acid systems at temperatures between 283 and 295 K and 285 and 297 K, respectively. This technique may be useful in the estimation of heats of reaction and equilibrium constants for exothermic reversible processes at higher temperatures.