In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (ζ) and thermal diffusivity (α). The units of these quantities are ?
(A) μ , α and θ all have units of m/s
(B) μ , α and θ all have units of m2/s
(C) α and θ have units of m2/s, while μ has unit of m/s
(D) α and θ have units of m/s, while μ has unit of m2/s
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