Enthalpic Mechanism of Indirect Coupling

We will start our analysis by evaluating the efficiency of the enthalpic mechanism of indirect coupling based on the dependence of the equilibrium constant on temperature. Let us consider, for the sake of simplicity, two monomolecular reactions which, in the general case, do not have common intermediates 

We assume that reaction (2.32) is a heat-producing (exothermic) one, (dHi/d i)p T 0, while reaction (2.33) is a heat-consuming (endothermic) process, dH2/d 2)p,T 0- According to the Van t Hoff equation, 

We assume that reaction (2.32) is an exothermic one, i.e., each elementary act of the chemical transformation of the molecule A into molecule B is accompanied by a release of heat. For elementary acts of reaction (2.32) heat production is 6Q = Reaction (2.33) is assumed to 

The relative increase in the concentration of the final product P from S (parameter yj) is 

---