RESPONSE REACTIONS - A WAY TO EXPLAIN THE UNUSUAL BEHAVIOR OF MULTIPLE EQUILIBRIUM SYSTEMS

Examples of multiple chemical equilibria are considered, illustrating responses of systems which cannot be treated by direct application of the Le Chatelier principle. In order to rationalize these unusual resp onses, a general treatment of sensitivity coefficients of complex chem ical equilibria, both in the gas phase and in solution, is elaborated. The sensitivity coefficients may be given as sums of contributions co ming from certain well defined reactions, which we name response react ions. The concept of response reactions enables us to give the sensiti vity coefficients a clear chemical meaning and to arrive at a simple a nd efficient algorithm for the analysis of the sensitivity of complex chemical equilibria.