Publisher's Synopsis
A study of Chemical phenomenon can be made from two fundamental approaches; first of these known as thermodynamics is a rigorous and exact method concerned with equilibrium conditions of initial and final states of chemical changes. The other method known as chemical kinetics, which deals with a more chemical aspect of chemical phenomenon, namely, the rate of change from initial to final state under non-equilibrium conditions. Chemical reactions proceed with different rates, some reactions are too fast and the rate of the chemical change taking place cannot be measured by conventional methods, and some are very slow that the rate of the chemical change is almost imperceptible. The initial and final states for a chemical system, do not provide us with a complete description of a chemical change in a system. Chemists are always interested in knowing that how long a time, does the change require, and why do the times for different change turn out as they do. According to Henry Eyring " A molecular system passes from one state of chemical equilibrium to another by all means of possible intermediates but the path with most economical of energy will be more often travelled". The subject of "chemical kinetics" is concerned with quantitative study of rates of chemical reaction and the factors upon which they depend. A chemical reaction may be thought of as a motion picture of all atom and their electrons involved in the reaction beginning before the reactants approach each other and ending after the products have been formed.
