Pls$.$ Illustrate the material balance. A solid material wet with toluene is dried in an adiabatic drier to recover toluene and

to produce dry solids. The drier is fed with $100$ m$^3/$h of an air$-$toluene mixture at

$101\mathrm{.}3$kPa and $333$K $$with a wet$-$bulb temperature of $305$K$.$The gases leave the drier

at $310$K $$DBT with relative saturation of $95\%.$The vapour pressure of toluene is given

by the Antoine equation

lnP$^$s$=13\mathrm{.}9987-((3096\mathrm{.}52)/($T$-53\mathrm{.}67))$

where pressure is in kPa and temperature is in K$.$The latent heat of vaporization is $404$

kJ$/$kg $$and the psychrometric ratio for the toluene$-$air system is $1\mathrm{.}88$kJ$/$kgK$.$Determine

the following:

$($a$)$The toluene evaporated in the drier, $($kg$/$h$)$

$($b$)$The volume of gases leaving the drier, $($m$^3/$h$)$