Determine an expression for the rate of absorption (at steady state) of the solute by a cylindrical jet of length L where a solute in the gas phase is absorbed by a cylindrical laminar liquid jet that emerges from a tube of diameter 2R (R is the tube radius). Due to jet contraction, the radius of the jet over much of its length is equal to aR (where a < 1). Also the velocity of the liquid in the jet can be assumed to be independent of axial position and uniform with respect to the radial direction.