. In the reactors A \longrightarrow B \quad \quad{ }_{B}={k}_{B} C_{A}^{2} \mathrm{A}+\mathrm{B} \longrightarrow 2 \mathrm{C} \quad{\quad} \quad \mathrm{C}=\mathrm{k}_{\mathrm{C}} \mathrm{C}_{\mathrm{A}} \mathrm{C}_{\mathrm{B}} What is the instantaneous selectivity of C to B? Which

reactor or combination of reactor sand at what temperatures would you use for the following reaction system? C is the desired product. C_{A 0}=4 \mathrm{~mol} / \mathrm{dm}^{3} \mathrm{k}_{\mathrm{B}}=1 \mathrm{dm}^{3} / \mathrm{mol} \cdot \min \text { at } 300 \mathrm{~K} \text { with } \mathrm{E}=4000 \mathrm{cal} / \mathrm{mol} k_{c}=1 \mathrm{dm}^{3} / \mathrm{mol} \cdot \mathrm{min} \text { at } 300 \mathrm{~K} \text { with } \mathrm{E}=12000 \mathrm{cal} / \mathrm{mol} a) High temperature and PFR b) Low temperature with semi batch reactor feeding B c) High temperature with semi batch reactor feeding B d) Low temperature with PFR e) High temperature with semi batch reactor feeding A