A cylindrical tube 1 cm in diameter and 10 cm in length has a drug immobilized on its surface. The equilibrium solubility of the drug in the fluid flowing through the tube is 100 mg L −1 . The fluid...

A cylindrical tube 1 cm in diameter and 10 cm in length has a drug immobilized on its surface. The equilibrium solubility of the drug in the fluid flowing through the tube is 100 mg L⁻¹. The fluid flows through the tube at an average velocity of 10 cm s⁻¹. If the exiting concentration CA out ( ) of the drug in the fluid is 0.163 mg L⁻¹, estimate the average value of the mass transfer coefficient (km) assuming that there is no drug in the fluid that enters the tube.