(Solved): A and B react according to the following reactions, which lead to production of desired (D) and un ...

A and B react according to the following reactions, which lead to production of desired (D) and undesired (U) species: $$\begin{array}{l}A+B?D,?r_1=k_1{C}_A{C}_B\\ D+B?U,?r_2=k_2{C}_D{C}_B\end{array}$$ You have two beakers, one containing A and another containing B. If you wish to maximize the formation of $$\mathrm{D}$$, in what manner would you mix the reactants and at what rate? Justify you answer. Note: You are free to alter the rate during the mixing. State any assumptions made.