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Consider the steady-state diffusion of a solute through a membranous sphere as shown in Figure6.35 (not given). Such a situation occurs when drugs are released from liposomes. The membrane is defined by the region between R0 and Ri. The solute concentration is highest at the core region. The spheres are placed in a large reservoir and the solute concentration in the bath is zero. Assume that the partition coefficient is one.
(a) State the steady-state form of the differential mass balance for diffusion in a sphere with no convection or reaction.
(b) State the boundary conditions
(c) Solve to obtain the concentration distribution in the membrane
(d) Determine the flux at r = R0
Two converging lenses (f1 = 9.00 cm and f2 = 6.00 cm) are separated by 18.0 cm. The lens on the left has the longer focal length, Locate the final image relative to the lens on the right
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After they have exchanged charge and are placed 24 cm apart the magnitude of the electric force is now 3.6 Newtons. How much charge, in micro-coulombs, was exchanged
A ball of mass M is moving horizontally at 6.00m/s. It collides in elastically with a block with mass 3 M that is initially hanging at rest from the ceiling on the end of a 70cm wire
Did the acceleration of the marble increase as it traveled down the ramp? What would happen to the velocity and acceleration of the marble if the ramp were steeper
An interferometer is used to measure the length of a bacterium. The wavelength of the light used is 650 nm. How long is the bacterium
An object, which has a height of 5.50 cm, is placed 22.0 cm in front of a plane mirror : What will be the position of the resulting image? What will be the height of the resulting image?
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