Sphericity of raschig ring (whose length and diameter are equal) is
A. >1
B. <1
C. 1
D. 2
Answer: Option C
This Question Belongs to Chemical Engineering >> Mechanical Operations
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The correct answer is:
B. < 1
Explanation:
Sphericity is defined as the ratio of the surface area of a sphere (having the same volume as the particle) to the surface area of the particle.
For any shape other than a perfect sphere, sphericity is less than 1.
A Raschig ring with length = diameter is cylindrical, so its sphericity is less than 1.
So, sphericity of Raschig ring < 1.