a) use Zwietering equation to find minim velocity use the table to find S in the equation. (S=6.7, Nmin = 162 rpm) b) simply

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a) use Zwietering equation to find minim velocity use the table to find "S" in the equation. (S=6.7, Nmin = 162 rpm) b) simply plug in Nimin,ungassed obtained in part a to find Nimin,gassed (Nimingassed = 5.1 rps) c) a simple sketch of a tank showing impeller and bubbles around the impeller (refer to the note) 3.5 Flg = 30 (D+) 5 Fr d) calculate Fr then FLg and find FLg from then compare the FLg values to decide whether flooding occurs. (Fr= 0.4, Flg= 0.1, Flg = 0.25)