f$)$ For the following set of liquid reactions, describe all possible reactor systems and conditions to maximize the selectivity to D$.$ Make sketches where necessary to support your choices. The rates are in $(\frac{\text{m}\text{o}\text{l}}{d{m}^3**s})$ and concentrations are in $(\frac{\text{m}\text{o}\text{l}}{d{m}^3}).$

$(1)$

$A+BD,-r_{1A}=10$exp$(-8,000\frac{K}{T})C_A{C}_B$

$(2)A+BU,-r_{2A}=100$exp$(-1,000\frac{K}{T})C_A^{\frac{1}{2}}{C}_B^{\frac{3}{2}}$

$[15$Marks$]$