2. Consider a polymeric membrane within a 6 cm diameter stirred ultrafiltration cell. The membrane is30 μm thick. The membrane has pores equivalent in size to a spherical molecule with a molecular weightof 100,000, a porosity of 80%, and a tortuosity of 2.5. On the feed side of the membrane, we have asolution containing a protein at a concentration of 8 g L-1 with these properties: a = 3 nm and DAB = 6.0 ×10-7 cm² s¹. The solution viscosity is 1 cP. The hydrodynamic pressure on the protein side of themembrane is 20 pounds per square inch (psi) higher than on the filtrate side of the membrane. Assumethat the hydrodynamic pressure difference is much larger than the osmotic pressure difference(advection >> diffusion). Determine the convective flow rate of the solution across the membrane.

Answered: Image /qna-images/answer/1cbba1bc-d118-4fca-8d4f-915d89ebbfe5.jpg

Answered: 2. Consider a polymeric membrane within…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Diffusion of carbon into BCC iron for 12 hours at a temperature of 500 °C results in a carbon concentration of 0.2 wt% at a depth 2 mm from the surface. How long would it take to get a concentration of 0.2 wt% at a depth 3 mm from the surface at 500 °C?
The surface of a solid sphere is covered by a monolayer of receptors for a ligand. When the ligands diffuse to the surface of the sphere, they are captured instantaneously by the receptors. The ligand diffusion coefficient is 2.3*10-9m2/s. Assume the bulk concentration far away from the sphere is constant of 1.5nM and the sphere radius is 1.8 μm. (a) Find the total ligand flux onto the surface of the sphere. The answer is in the form of A*10-18 mole/s. Please enter the value of A in the box.
Diffusion of carbon into the surface of BCC steel at 600oC for 10 hours results in a carbon concentration of 0.2wt% at a depth of 1.5 mm below the surface. At what depth will the same concentration be obtained if the diffusion time is increased to 20 hours, leaving the temperature at 600o
Please no hand writing solution
Compare the diffusion coefficients (in cm²/s) of nitrogen in BCC and FCC iron at the allotropic transformation temperature of 912°C. Decc -153606 X Your response differs from the correct answer by more than 10%. Double check your calculations, cm²/s -1976-7 Dicc x Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. cm2/s
A mixture of species of A, B, and C is injected into a liquid chromatographic column with length of 20.0 cm. The obtained separation results are listed as follows: Please calculate the average number of theoretical plates from the data. Please round your result to whole number. The answer would be 2,153 (Need getting the answer)
Please solve this question in material science
The figure below shows five different steady-state concentration profiles from five separate tests, which had the same gas across identical membranes at the same temperature. Rank the diffusion flux of the five concentration profiles from lowest to highest. Using bullet points explain your answer. C(x)' (a) (b) (c) (d) (e) Membrane Thickness
Question 1Helium gas is contained in a cylinder by a gas-tight piston which can beassumed to move without friction. The gas occupies a volume of 1 x 10^-3m^3 temperature of 300K and a pressure of 1 x 10^5 Pa.(a) Calculate :i.the number of helium atoms in the container,ii.the total KE of the helium atoms(b) Energy is now supplied to the gas in such a way that the gas expands andthe temperature remains constant at 300K. State, and explain what changes, if any, will have occurred in the following quantities :i. The internal energy of the gasii. The root-mean-square speed of the helium atomsiii. The density of the gas.(Given : Boltzmann's constant = 1.38 x 10^23 JK^-1)
Give me right solution according to the question... Careful with given units
Help me please
A Tank of Helium A tank used for filling helium balloons has a volume of 0.300 m3 and contains 2.25 mol of helium gas at 20.4°C. Assume the helium behaves like an ideal gas. (a) What is the total translational kinetic energy of the gas molecules? SOLUTION Conceptualize Imagine a microscopic model of a gas in which you can watch the molecules move about the container more rapidly as the temperature increases. Because the gas is monatomic, the total translational kinetic energy of the molecules is th internal energy of the gas. Categorize We evaluate parameters with equations developed in the preceding discussion, so this example is a substitution v problem. Use the following equation with n = 2.25 mol and T = 294 K (Give your answer in J): Eint =nRT = (b) What is the average kinetic energy per molecule? SOLUTION Use the following equation (Give your answer in J): EXERCISE The internal energy of a monatomic ideal gas is increased by a factor of 4.2. By what factor does the rms speed of…

SEE MORE QUESTIONS

Recommended textbooks for you

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Control Systems Engineering

Mechanical Engineering

ISBN:

9781118170519

Author:

Norman S. Nise

Publisher:

WILEY

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

Engineering Mechanics: Statics

Mechanical Engineering

ISBN:

9781118807330

Author:

James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher:

WILEY

SEE MORE TEXTBOOKS