A thin plastic membrane is used to separate helium from a gas stream. Under steady-state conditions the
Question:
A thin plastic membrane is used to separate helium from a gas stream. Under steady-state conditions the concentration of helium in the membrane is known to be 0.02 and 0.005k mol/m3 at the inner and outer surfaces, respectively. If the membrane is 1 mm thick and the binary diffusion coefficient of helium with respect to the plastic is 10-9 m2/s, what is the diffusive flux?
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 58% (12 reviews)
KNOWN Molar concentrations of helium at the inner and ...View the full answer
Answered By
Rayan Gilbert
I have been teaching since I started my graduation 3 years ago. As a student, working as Teacher/PA has been tough but made me learn the needs for student and how to help them resolve their problems efficiently. I feel good to be able to help out students because I'm passionate about teaching. My motto for teaching is to convey the knowledge I have to students in a way that makes them understand it without breaking a sweat.
5.00+
1+ Reviews
10+ Question Solved
Related Book For
Fundamentals of Heat and Mass Transfer
ISBN: 978-0471457282
6th Edition
Authors: Incropera, Dewitt, Bergman, Lavine
Question Posted:
Students also viewed these Mechanical Engineering questions
-
A 0.001 in. BCC iron foil is used to separate a high hydrogen content gas from a low hydrogen gas at 650 C. 5 108 H atoms/cm3 are in equilibrium on one side of the foil, and 2 103 H atoms/cm3 are...
-
A 1-mm-thick BCC iron foil is used to separate a region of high nitrogen gas concentration of 0.1 atomic percent from a region of low nitrogen gas concentration at 650 C. If the flux of nitrogen...
-
The concentration of H2O in the stratosphere is about 5 ppm. It undergoes photodissociation according to: (a) Write out the Lewis-dot structures for both products and reactant. (b) Using Table 8.4,...
-
How could sales force automation affect salesperson productivity, marketing management, and competitive advantage?
-
When only a few photons are observed, classical physics fails. When many are observed, classical physics is valid. Which of these two facts is consistent with the correspondence principle?
-
A block weighing W = 5.0 N drops inside a cylinder from a height h = 200 mm onto a spring having stiffness k = 90 N/m (see figure). (a) Determine the maximum shortening of the spring due to the...
-
Estimate the standard Gibbs free energy and the equilibrium constant at 1 bar and \(800 \mathrm{~K}\) for the reaction \[ \mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) ightleftharpoons 2...
-
Barrymore Costume Company, located in New York City, sews costumes for plays and musicals. Barrymore considers itself primarily a service firm, as it never produces costumes without a pre-existing...
-
Suppose that a technological advance in Japan lowers the world price of televisions. a. Assume Switzerland is an importer of televisions and there are no trade restrictions. How does the...
-
A December 31, 20X1, postclosing trial balance for Short Erin Company follows. Additional information about Short Erins account balances: 1. Cash includes $12,000 in U.S. treasury bills purchased on...
-
Gaseous hydrogen at 10 bars and 27C is stored in a 100-mm-diameter spherical tank having a steel wall 2 mm thick. The molar concentration of hydrogen in the steel is 1.50k mol/m3 at the inner surface...
-
Consider the interface between atmospheric air and a body of water, both at 17C. (a) What are the mole and mass fractions of water at the air side of the interface, at the water side of the...
-
1. In what ways is Barcelona's management approach consistent with modern developments in management thinking? 2. In what ways does Barcelona's management approach run counter to contemporary...
-
4. A 20.0 g piece of clay moves with a constant speed of 15.0 m/s. The piece of clay collides and sticks to a massive ball of mass 0.900 kg suspended at the end of a string. a. Calculate the momentum...
-
On a day when the wind is blowing toward the south at 5 m/s, a runner jogs east at 6 m/s. What is the velocity (speed and direction) of the air relative to the runner? speed m/s
-
A skyscraper has a mass of about 1.3010^8 kg and its center of mass is 147 m above the surrounding ground. How much gravitational potential energy (relative to the ground on which it is built) is...
-
A 0.47-kg block of wood hangs from the ceiling by a string, and a .07-kg wad of putty is thrown straight upward, striking the bottom of the block with a speed of 5.6 m/s. The wad of putty sticks to...
-
Your friend of mass 80 kg floats in fresh water. What is her approximate volume? ( Human density is about 1000 kg/m 3) What is the density of a 7 kg solid cylinder that is 10 cm tall with radius 5 cm.
-
Both Portfolio Y and Portfolio Z are well diversified. The risk-free rate is 6%, the expected return on the market is 15%, and the portfolios have these characteristics: Which of the following best...
-
Floyd Distributors, Inc., provides a variety of auto parts to small local garages. Floyd purchases parts from manufacturers according to the EOQ model and then ships the parts from a regional...
-
A 1.0-L container of liquid nitrogen is kept in a closet measuring 1.0 m by 1.0 m by 2.0 m. Assuming that the container is completely full, that the temperature is 25.0 C, and that the atmospheric...
-
Using the experience gained with Prob. 1030, write a computer program that would help in the design of a helical coil extension spring.
-
A certain application requires a ball bearing with the inner ring rotating, with a design life of 30 000 h at a speed of 300 rev/min. The radial load is 1.898 kN and an application factor of 1.2 is...
-
An angular-contact, inner ring rotating, 02-series ball bearing is required for an application in which the life requirement is 50 000 h at 480 rev/min. The design radial load is 610 lbf. The...
-
A crane lifts a load with a force of 1000 N over a distance of 10 meters in 20 seconds. What is the average power generated by the crane?
-
A child jumps from a moving sled with a speed of 2.2 m/s and in the direction opposite the sleds motion. The sled continues to move in the forward direction, but with a new speed of 5.5 m/s. If the...
-
An iron block with a mass of 45 000 g rests on an incline plane of 16 to the horizontal. Take the coefficient friction as 0,25. Calculate the following: 1.1 the weight component perpendicular to the...
Study smarter with the SolutionInn App