... 0.001/1000 D 2 ð 107or: u0D 2 ð 107/d CHEMICAL ENGINEERING Solutions to the Problems in Chemical Engineering Volume 114 CHEMICAL ENGINEERING VOLUME 1 SOLUTIONS In equation (i): u0D d2g/18s ... Richardson Chemical Engineering, Volume 5, Second edition Solutions to the Problems in Volumes 2 and 3J. R. Backhurst and J. H. Harker Chemical Engineering, Volume 6, Third edition Chemical Engineering ... viscosity of theliquid, ; volume of the drop, V expressed in terms of d, the drop diameter; density of the liquid, ; acceleration due to gravity, g and possibly, surface tension of the liquid,UNITS...