The mass transfer co-efficient for a solid sphere of radius 'a' dissol – McqOptions

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1.	The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is%!
A.	D/a
B.	D/2a
C.	Proportional to ‚Äö√ √∂D
D.	Dependent on the Reynolds number
Answer» E.

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