1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tamaranim1 [39]
3 years ago
11

Hydrogen gas (density = 1.165 kg/m^3 ) is stored at 25°C in a permeable cylindrical container which has an outer diameter of 0.2

5 m, a wall thickness of 5 mm and a length of 2 m. The cylinder is exposed to ambient air.
If the container is charged to an initial pressure of 5 bars, at what would be the mass diffusion rate (in kg/s) of hydrogen through the cylinder? Hydrogen solubility in the container is 0.5X10^(-3) kmol/m^3 bar and diffusivity at 293K and 1 bar is 0.4x10^(-13) m^2 /s.

Engineering
1 answer:
AVprozaik [17]3 years ago
4 0

Answer:

6.007 x 10^(-14) kg/s

Explanation:

You might be interested in
At the beginning of last year, tarind corporation budgeted $1,000,000 of fixed manufacturing overhead and chose a denominator le
maxonik [38]

The tari's total standard machine-hours allowed for last year's output 600,000 hours

Budgeted at start of year:  $100,000 fixed manufacturing overhead  for 500,000 machine hours

Standard = $100,000 / 500,000 hours = $0.2 fixed overhead / maching hour

At end of year, manufacturing overhead volume was $20,000 favorable which means

$20000 / $1=0.2 = 100000 additional hours.

Total Standard Machine Allowance Allowed for output = 500,000 + 100,000 = 600,000 hours.

the use of one machine running for an hour as a basis for cost estimation and operating effectiveness evaluation. In order to determine the contribution margin per machine hour for a specific product: a. Total cost per unit divided by the quantity of machine hours required to produce each unit of the target product. The manufacturing overhead cost divided by the activity driver yields the predetermined overhead rate. For instance, if machine hours were the activity driver, you would divide overhead costs by the anticipated number of machine hours.

Learn more about machine hours here:

brainly.com/question/14298561

#SPJ4

7 0
1 year ago
The flowchart below shows the design steps required to build a working model.
AlekseyPX

Question:

1) test the model and analyze the results of the test

2) building the model and observing it

3) observing the model and reporting results

w

4) designing the model and drawing conclusions​

Answer:

The correct option is;

1) Test the model and analyze the results of the test

Explanation:

Based on the flowchart, a model improvement process involves the implementation of a process or model improvement cycle such as the Plan Do Study Act, PDSA cycle, however feedback to the process will be be gotten from testing the model and analyzing the results of the tests. When grey areas or aspects of the model are found that cause the system to malfunction are determined, steps should then be taken to improve the performance of the model.

4 0
3 years ago
Cómo se llama el componente, que permite abrir o cerrar un circuito eléctrico
Korolek [52]
Creo haber leído sobre esto..Un “interruptor” yo diría
5 0
3 years ago
Discuss importance of good communication system​
meriva

Answer:

Effective communication helps decision makers by gathering and providing the information to the right person on right time. Communication performs as a motivator to the employees by notifying the employees about the job task, process of carrying and how it could be done better.

7 0
2 years ago
6.03 Discussion: Then & Now - Safety
34kurt

Answer:

Information technology is important in our lives because it helps to deal with every day's dynamic things. Technology offers various tools to boost development and to exchange information. Both these things are the objective of IT to make tasks easier and to solve many problems.

6 0
2 years ago
Other questions:
  • The uniform dresser has a weight of 90 lb and rests on a tile floor for which the coefficient of static friction is 0.25. If the
    6·1 answer
  • Although the viscoelastic response of a polymer can be very complex (time-dependent stress cycling for instance), two special lo
    11·1 answer
  • Fuel Combustion and CO2 Sequestration [2016 Midterm Problem] Long-term storage of carbon dioxide in underground aquifers or old
    5·1 answer
  • 1. Using a typical frequency value for the initiating event and PFD values provided in class lectures, estimate the mishap or co
    6·1 answer
  • What is the key to being a good engineer?
    15·2 answers
  • A 0.91 m diameter corrugated metal pipe culvert (n = 0.024) has a length of 90 m and a slope of 0.0067. The entrance has a squar
    5·1 answer
  • Describe what viscoelastic behavior means
    7·1 answer
  • Ring rolling is a deformation process in which a thick-walled ring of smaller diameter is rolled into a thin-walled ring of larg
    11·1 answer
  • A demand factor of _____ percent applies to a multifamily dwelling with ten units if the optional calculation method is used.
    14·1 answer
  • A control system that is used in elevator system
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!