A mixture of solid particles such as 1kg lessing ring with a diameter (mm) of 6, 2kg raschig ring with a diameter (mm) of 8, and 3kg berl saddle with a diameter (mm) of 12. The bulk density are 800,...

A mixture of solid particles such as 1kg lessing ring with a diameter (mm) of 6, 2kg raschig ring with a diameter (mm) of 8, and 3kg berl saddle with a diameter (mm) of 12. The bulk density are 800, 720, 850 in kg/m^3, respectively. Each possess sphericity of 0.577, 0.659, and 0.3, respectively. Calculate spec. surface are of mixture (m^2/kg) & no. of particles (total).