***PLEASE SHOW ALL STEPS AND ALL FORMULAS TO BE RATED THUMBS UP!!!***

7) We wish to estimate the rate at which benzene will evaporate from a wetted surface of unusual shape when N2 at 1 bar and 300 K blows over the surface at a velocity of 10 m/s. No mass transfer data are available for this situation, but heat transfer measurements indicate that for CO2 at 300 K and 1 bar, the heat transfer coefficient h between the gas and the surface is given empirically by h= 20 (GY)0.5 Where h is in units of W/m.K and Gy = p.v = gas mass velocity in kg/m.s. For this CO2 system, Pr = 0.77; u = 150 uP; p = 1.98 kg/m and Cp = 853 J/kg-K. Estimate the required mass transfer coefficient. Consider that the physical properties in the system, at 300K and 1 bar, correspond to the average film conditions and are given by following values: May = 31.4 kg/kmol p = 1.26 kg/m = 161 P DAB = 0.0986 cm/s Hint: Employ the Chilton-Colburn Analogy to solve this problem. Answer: ke = 0.037 m/s