Assuming NON$-$STEADY STATE conditions for a CSTR containing trichloroethene $($TCE$)$ and a first

order reaction rate coefficient for TCE of $0\mathrm{.}075$ per min, calculate how many days $($three decimal

places$)$ are needed for the TCE concentration to decrease from $15\backslash$mu g$/$L to $2\backslash$mu g$/$L$.$ The influent and

effluent flow rates are $250$ mL$/$day and the reactor volume is $25$ L$.$ There is no TCE in the influent