19) solve the problem correctly and write the solution step-by-step clearly. Thanks

Also how to determine thatbit is laminar flow not turbulent flow!

4. The boundary layer solution for a plate predicts the following equations: for laminar flow: Sh; = 0.332 Re,"? S.!" 1/3 for turbulent flow: Sh, = 0.0292 Re,"SS" 9 evaluate: (a) The value of the mass-transfer coefficient at a point where the Reynolds number is 70,000. (6%) (b) The average film-transfer coefficient, k , for the flat plate from the leading edge to the point where the Reynolds number is 70,000. (8%) (c) The value of the mass-transfer coefficient at a point where the Reynolds number is 700,000. (6%) (Hint: Show the convective mass-transfer coefficient as a function of Sc and voo, where voo is the velocity of the solution.)