Use the durand-condolios-worster correlation to calculate the pressure drop over a 100m length due to friction when a slurry made from 1.0-mm silica particles is pumped through a horizontal 6-cm diameter pipeline at 3.0 m/s. the slurry contains 25 per cent silica by volume. the density of silica is 2700 kg/m', pw 1000 kg/m', hw 0.001 kg/ms. use a value of 82 for 2. drag coefficient for these particles, cd, may be taken as 0.44 1. (10 marks) calculation of pressure drop due to water (5 marks) calculation of excess pressure drop due to solids