Hi. Please help me to solve this question with correct answer. I will upvote if you answer this correctly!!!! Please skip if you don't know the answer. Please skip if you don't know the answer.

b) Air at 93.3C and 1 atm flows at a velocity of 2.24 m/s in a duct and parallel to a flat plate made of solid naphthalene. The plate length is 0.251 m and the diffusivity of naphthalene in air is 5.16 x 10-6 m/s at 0C and 1 atm. Calculate the mass transfer coefficient, k'c for the system. The density and viscosity of water at 93.3C and 1 atm are: Density of air = 0.964 kg/m3 Viscosity of air = 2.15 x 10-5 Pa.s (10 marks)