Van't Huff's equation for endoreversible chemical reactions

We propose that the so-called van't Hoff s equation for the enthalpy changes in a chemical reaction may be modified in the context of endoreversible thermodynamics. This modification takes into account the role played by the heat supplied by the thermal bath for maintaining constant the temperature of the chemical system. We analyze the reaction of hydrogen iodide synthesis by means of the modified van't Hoff s equation.