Reversible reactions of reaction

However, as the HCl concentration is further increased, one would expect that the reverse reactions of Reactions 5a and 5b would become rapid compared with Reaction 1 and that the ratio of tert-butyl and iso-butyl radicals would tend toward its equilibrium value, Kt/i. In this equilibrium limit, the ratio of 2,2-dimethyl butane to 2-methyl pentane will be Kt/i(ki /kib), where la and lb refer to the reactions ... [Pg.292]

If the reverse reaction of Reaction 1 is endothermic, what is the sign of AH of the reaction in which HI is on the product side ... [Pg.157]

Finally, let us apply LeChatelier s principle to determine the effect of temperature on an equilibrium chemical reaction. Raising the temperature of a system is equivalent to adding heat. Therefore, if the temperature of a system is raised at constant pressure, the chemical reaction will proceed in the direction that absorbs heat (i.e., in the direction of the so-called endothermic reaction). For example, the reverse reaction of Reaction (1.11) is endothermic, but the forward reaction is exothermic (i.e., heat is released by the forward reaction). Therefore, the equilibrium shifts in the forward direction if the temperature is lowered, and in the reverse direction if the temperature is raised at constant pressure. [Pg.11]