Air rapidly flows over a 10.0 m x 8.0 m rectangular spill of gasoline (n-octane) at a velocity of 8.0 m/s. The spill occurred within an enclosure where the gas temperature was maintained at 27 C. You may assume that gasoline approximates n-octane (A = n-octane).

a. At what position on the liquid film does the gas flow transition out of laminar flow? Plot out the local thickness of the hydrodynamic and concentration boundary layers with position within the laminar portion. What is the ratio of the concentration boundary thickness to the hydrodynamic layer thickness?
b. Is the overall process in laminar, transition, or turbulent flow?
c. What is the gasoline vapor emissions rate from the entire spill, in units of gmole/s? You may assume that the temperature of the liquid spill remains constant at 27 C, the same as the air flow.
d. Is it reasonable to assume that the temperature of the spill liquid remains at 27 C? If not, would the temperature of the liquid spill go up or down, and how would this affect the emissions rate?