Filtration is carried out in a plate and frame filter press with 20 plates (each plate has a filtration area of 0.3m2) the flow rate of filtration is maintained constant, until the pressure reaches 350kPa. The following constants apply to the filtration. [5 marks] = 5 x 108 m/kg = 1 x 10-3 Pa.s CS = 5000 kg/m3 Q = 0.001 m3/s RM = 1 x 1010 m-1 How long does it take for the pressure to reach 350 kPa?