Concentration-Related Parameters Order of Reaction

For simplicity, we consider the use of a constant-volume BR to determine the kinetics of a system represented by reaction (A) in Section 3.1.2 with one reactant (A), or two reactants (A and B), or more (A, B, C,. . . ). In every case, we use the rate with respect to species A, which is then given by 

Differentiation of concentration-time data. Suppose there is only one reactant A, and the rate law is 

From equation 2.2-10 and differentiation of the cA(f) data (numerically or graphically), values of (—rA) can be generated as a function of cA. Then, on taking logarithms in equation 3.4-1, we have 

If there were two reactants A and B in reaction (A), Section 3.1.2, and the rate law were of the form 

The procedure is similar to that for one reactant, although there is an additional constant to determine. From equation 3.4-3, 

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