For raschig rings, the sphericity is_____________________?
Correct answer: B. < 1
- A. 0.5
- B. < 1
- C. 1
- D. √3
Explanation
Sphericity equals the surface area of an equal-volume sphere divided by the actual particle surface area, and it is 1 only for a sphere. A Raschig ring is non-spherical, so its sphericity is less than 1.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Mass Transfer Operations
669 free Mass Transfer Operations MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Mass Transfer Operations questions
For removal of very small amounts of precipitate from large volume of water, the most suitable filter is the ______________ filter?
Which of the following is not categorised as a "mechanical operation"?
Which of the following is not used as a filter medium in case of corrosive liquids?
Which of the following is not used as a surface active agent in a flocculation operation ?
Activators are those chemicals which help buoying up one mineral in preference to the other in the froth floatation process. Which of the following is an activator ?
The filtrate flow rate in constant pressure filtration___________________?