The rate law for a reaction is rate = k[A]²[B].Which of the following mixtures of reactants will give the $\underline{\text{ smallest initial rate? }}$

Question

Quizplus · Accepted Answer

To find the smallest initial rate, we need to look at the reaction rate equation and figure out which combination will result in the smallest rate. The rate equation is rate = k[A]^s1u1P12s1s1P0[B]. We can see that the rate depends on the concentrations of both A and B, but also on the power to which each concentration is raised (s1u1P12s1s1P0). To minimize the rate, we need to minimize the concentrations of both A and B, and also minimize the power to which each concentration is raised. Therefore, option D (0.125 M A and 3.0 M B) would be the best choice as it has the lowest concentration of A and the highest concentration of B, both of which are raised to the lowest power (s1 and P0 respectively).

The Rate Law for a Reaction Is Rate = K[A]2[B] smallest initial rate? ‾\underline{\text{ smallest initial rate? }} smallest initial rate? ​

The Rate Law for a Reaction Is Rate = K[A]²[B] $\underline{\text{ smallest initial rate? }}$