In: Chemistry
Chemical Engineering Q: A suspension was centrifuged at 5000 RPM. The measurement of the position of the interface showed that at a time of 20 min, it was at a radial distance 2 mm from the center while at 4 min, it was at a radial distance of 6 mm. The dry density of the protein was determined to be 1.5 g/cc. Determine the sedimentation coefficient, s from this data. Determine the ratio of the particle mass to its friction coefficient, m/f. Assuming that the particles are spheres, determine the particle radius.