Particles that have a size of 0.10mm, a sphericity of 0.86 and a density of 1200kg/m3 are going to be fluidized using air at 25C and 202.65 Kpa of absolute pressure. The vacuum fraction under minimum fluidization conditions is 0.43. The diameter of the bed is 0.6, and the bed contains 350 kg of solids. Calculate the pressure drop and velocity at minimum fluidization conditions if the minimum bed height is 1.3 m