(30 points) (a) Calculate the minimum fluidization velocity and the pressure drop at minimum fluidization condition for fluidization of a bed of solid particles with air at 2atm and 25oC. The properties of the solid particle are as follows: Dp = 0.12mm s = 0.88 = 1000kg/m3 m = 0.42 (b) If you operate the bed at a velocity twice that of the minimum fluidization velocity, what will be bed length? The bed contains 300kg of solids and the