A single hollow fiber is placed within a larger diameter glass tube forming a shell space that surrounds the hollow fiber. The hollow fiber is 20 cm in length and has a diameter of 400 μm. The flow rate of a liquid through the hollow fiber is 1 cm3 min-1 and in the shell space, another liquid also flows through at a flow rate of 100 cm3 min-1. The liquid entering the hollow fiber also contains a permeable solute. It is found that the concentration of the permeable solute exiting the hollow fiber is 10% of the concentration of this solute when entering the hollow fiber in the liquid. Estimate the permeability for this solute in centimeters per second