6. A viscous solution containing particles with a density of particle, 1461 kg/m³ is to be clarified by centrifugation. The solution density is 801 kg/m³ and its viscosity is 100 centipoise. The tubular bowl centrifuge has a bowl with $r_2$= 0.02225 m, $r_1$= 0.00716 m, and height b=0.1970 m. Calculate the critical particle diameter, $D_{pc}$, of the largest particles in the exit stream if rotational speed, N=23000 RPM and flow rate q= 0.002832 m³/h. 6 Marks