$3\mathrm{.}26$ Consider the reaction A $+$ B r $=0\mathrm{.}15($mint$)$ CA in a CSTR$.$ A costs $$2/$mole$,$ and B sells for $$5/$mole$.$ The cost of the operating the reactor is $$0\mathrm{.}03$ per liter hour. We need to produce $100$ moles of B$/$hour using CA $=2$ moles$/$liter$.$ Assume no value or cost of disposal of unreacted $($a$)$ What is the optimum conversion and reactor size? $(6)$ What is the cash flow from the process? $($c$)$ What is the cash flow ignoring operating cost? $($d$)$ At what operating cost do we break even?