the liquid$-$phase elementary reaction A$->$B was carried out in a reactor with RTD described by the figure$($when $t=5,E(t)=0\mathrm{.}2,t$ is decreasing after $5.$ the rate constant

$k=0\mathrm{.}02,$ ca $0=10.$

how long does it take for all tracer to exit the system, i$.$e$.$ at what toes $E(t)=0?$

according to the segregation model what is the conversion at the exit?

Whar is the conversion when material first exits the reactor at $t=5$min $?$