If dp is the equivalent diameter of a non-spherical particle, Vp its volume and sp its surface area, then its sphericity is Φs is defined by

If dp is the equivalent diameter of a non-spherical particle, Vp its v

1.	If dp is the equivalent diameter of a non-spherical particle, Vp its volume and sp its surface area, then its sphericity is Φs is defined by
A.	s = 6 Vp/dp sp
B.	s = Vp/dp sp
C.	s = 6 dp Sp/Vp
D.	s = dp Sp/Vp
Answer» B. s = Vp/dp sp

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If dp is the equivalent diameter of a non-spherical particle, Vp its volume and sp its surface area, then its sphericity is Φs is defined by

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