Consider a composite membrane that is being used to filter plasma from blood. plasma has a
viscosity of 1.2 cp. the composite membrane consists of a microporous sponge-like material
that provides structural support. this membrane is 25 μm thick and has pores that are 2 μm
in diameter. these pores are also tortuous and have a tortuosity (i. e., τ) of 1.67. the porosity
of this membrane (i. e., ap/s) is also equal to 0.60. attached to this microporous membrane
is a thin permselective skin 3.23 μm thick that has a nmwco of 1000. the pores in this
membrane skin are therefore about 0.0015 μm in diameter. the tortuosity of the pores in the
membrane skin is also equal to 1.67, and the porosity of the membrane skin is equal to 0.60.
use the formula found in problem 3.13 to predict the overall hydraulic conductance for this
composite membrane. find the total filtration flow rate (ml h−1) across this composite membrane
assuming the total surface area of the membrane is 1 m2 and that the overall effective
pressure drop across the composite membrane is 160 mmhg.
Answers: 1
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Which of the following statements is true about energy quantization at the atomic level? electrons in the outermost orbits are the most stable. electrons in all the orbits around the nucleus have the same amount of energy. electrons in the orbit closest to the nucleus have the least amount of energy. electrons absorb or release the same amount of energy independent of the energy levels.
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The vapor pressure of water at 25.0°c is 23.8 torr. determine the mass of glucose (molar mass = 180 g/mol) needed to add to 500.0 g of water to change the vapor pressure to 22.8 torr.
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Consider a composite membrane that is being used to filter plasma from blood. plasma has a
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