Q2 Benzene is nitrated in a CSTR in three sequential irreversible reactions: Benzene $+\mathrm{HNO}_{3} \rightarrow$ nitrobenzene $+\mathrm{H}_{2} \mathrm{O}$ Nitrobenzene $+\mathrm{HNO}_{3} \rightarrow$ dinitrobenzene $+\mathrm{H}_{2} \mathrm{O}$ Dinitrobenzene $+\mathrm{HNO}_{3} \rightarrow$ trinitrobenzene $+\mathrm{H}_{2} \mathrm{O}$ If there are two feed streams, one pure benzene and one concentrated nitric acid (98 wt \%). Assume constant densities and complete mixing. Draw a simple sketch for the above Benzene nitration process, then derive a dynamic mathematical model of the system. [10 Marks]

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