please explain why the answer became 0.52 and 1.46? please show a complete solution not just a table. thank you.

13.1 In the pharmaceutical industry, any batch that deviates from the set parameters is designated as an 'atypical' batch and must be investigated before the product can be released. You are a pharmaceutical process engineer, responsible for granulating a pharmaceutical product in a 600 litre mixer containing 150 kg of dry powders. It was noticed while manufacturing a new batch that the liquid delivery stage ended carlier than usual and the batch contained larger granules than normal. During normal production, the impeller speed is set to 90 rpm and water is added at a flowrate of 2 litre/mn through a nozzle producing an average drop size of 400 jem. Due to an incorrect setting, the actual flow rate used in the atypical batch was 3.5 litre/min and the actual drop size was Table 13W2.1 fwer(%) f(%) 0.1 0.17 0.2 0.5 1 10 16 18 39 63 67 51 45 14 2 estimated at 250 jim. The spray width and powder surface velocity were unaffected and remained constant at 40 cm and 60 cm/s, respectively. Calculate the dimensionless spray flux for the normal case and the atypical batch, and explain why this would have created larger granules. (Answer. normal 0.52, atypical, 1.46.)