Problem $3(25/100)$: The reaction

$AB$

is taking place in a constant$-$volume batch reactor. Calculate the time $($in min $)$ to consume $80\%$ of

species A for a second$-$order reaction. The initial concentration of A is $0\mathrm{.}37mo\frac{l}{d}{m}^3$ and the

reaction rate constant is $0\mathrm{.}7d\frac{m^3}{\text{m}\text{o}\text{l}\text{m}\text{i}\text{n}}.$