(a) Calculate the steady-state mass transfer coefficient for diffusion from the wall of a smooth 3-cm tube when the average fluid velocity u = 1.8 m/s, ρ = 1050 kg/m³, μ = 5 cP, and D_v = 2.0 x 10^-6 cm²/s. 

(b) Calculate the effective film thickness and compare this with the thickness of the laminar sublayer [see Eq. (5.36) and Fig. 5.7) What is the significance of the difference?

Eq. 5.36

Fig. 5.7

Transcribed Image Text:

(5.36)