_ If dp is the equivalent diameter of a non-spherical particle, Vp its volume and sp its surface area, then its sphericity is ≈í¬∂s is defined by$?

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

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