Multiple problems. A high efficiency impeller with 4 baffles each Dt/J=12 with Dt=1.83m=H and Da=0.61m, runs at 100 rpm with a fluid of 50 cP and 1000 kg/m3. In order

to double the volume of the system and scale by equal rates of mass transfer, the new rpm is closest to: A) 86 B) 50 C) 200 D) 114 E) 126.