Blood is flowing through a hollow fiber that is 800 m in diameter and 30 cm in

Blood is flowing through a hollow fiber that is 800 μm in diameter and 30 cm in length. The average velocity of the blood within the hollow fiber is 25 cm sec–1. The concentration of a drug is maintained at 10 mg L–1 along the inside surface of the hollow fiber. The diffusivity of the drug in blood is 4 × 10–6 cm2 sec–1. Estimate the mass transfer coefficient, km, for the drug. (Assume the bulk of the blood is free of the drug except adjacent to the wall).

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Given V 25 cmsec D 4 10 6 cm 2 ... View the full answer