Question $2$

One hundred kmo$($l$)/($h$)$ of saturated$-$liquid feed of $40$mol$\%$A in B is distilled in a packed column

operating at $1$atm to obtain a distillate of $66$mol$\%$A and a bottom of $96$mol$\%$B$.$ The reflux ratio

is $1\mathrm{.}5$ times the minimum. The column has as total condenser and a partial reboiler. The mass

transfer coefficients given below and assumed to be constant in the respective section. The diameter

of the packed column is $1\mathrm{.}5$m$.$ determine the height of the packed column.