A stream of air at 100 kPa pressure and 300 K is flowing on the top surface of a thin flat sheet of solid naphthalene of length 0.2 m with a velocity of 20 m/sec. The other data are: Mass diffusivity...

Extracted text: A stream of air at 100 kPa pressure and 300 K is flowing on the top surface of a thin flat sheet of solid naphthalene of length 0.2 m with a velocity of 20 m/sec. The other data are: Mass diffusivity of naphthalene vapor in air = 6×10-6 m²/s Kinematic viscosity of air = 1.5x10-5 m²/s Concentration of naphthalene at the air-solid naphthalene interface = 1x10-Skmol/m³ Recall: %3D Nu = 0.664 Re5 Pr0.33 (a) Develop an equation for Shi for laminar flow over a flat plate by using Chilton – Colburn analogy (b) Determine the average mass transfer coefficient over the flat plate. (c) Determine the rate of loss of naphthalene from the surface per unit width.