Let$$s assume that there is an irreversible reaction of zero$-$order $($both A and B$)$ liquidphase $[$A$($l$)+2$B$($l$)->3$C$($l$)]$ taking place in semibatch reactor with initial $84$ moles of A in the reactor.

The initial reactor volume is $50$ L $($liters$).$ The reactant B is added to the semibatch reactor at a

volumetric rate of $2$ L$($liter$)/$min and a concentration of $10$ mol$/$L$($liter$).$ The rate constant k is $0\mathrm{.}125$

mol$/($lit$$min$).[10$ points$]$ How much time does it take to reach a conversion of $50\%$ A$.$ What are the

concentrations of $[10$ points$]$ A and $[10$ points$]$ B at this time? $($Round down to two decimal places$)$