A gas absorption tower of diameter 2m contains ceramic Raschig rings randomly packed to a height of 5m. Air containing a small proportion of sulfur dioxide passes upwards through the absorption tower at a flow rate of 6m3/s. The viscosity and density of the gas may be taken as 1:80105 Pa s and 1:2kg/m3, respectively. Details of the packing are given below: Ceramic Raschig rings surface area per unit volume of packed bed =190m2/m3, voidage of randomly packed bed ()=0.71 C. Discuss how this pressure drop will vary with flow rate of the gas within 10% of the quoted flow rate. D. Discuss how the pressure drop across the packing would vary with gas pressure and temperature