What are the main objectives usually present int the scale$-$up of an agitation proces befine seate uip ratio $-$ R in an agitation process. A lank $12m$ in diametef and $2m$ high is fillat of of depth of $1\mathrm{.}2m$ with a latex laving a viscosity of $10$ pouse and $3$ dersity of $800$ kym the tark is nof bafled A $3.$ lade $360mm$ diameter propellor is installed in the $1$ ank $360mm$ from the tank bottumt The motor avallable develops $8kW.$ Is the motor adequati to drive this agitator at a speed of $8$ulo PePM? Tate Power number, Np$,$ value equal to $0\mathrm{.}73,$ Note: $1$ pouse $=0\mathrm{.}1Pa.$

$4$ Marks