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• hartfan

Posts: 1038
I know there are some really smart people on here. I'm working on a thorny problem and I need some help. Thanks in advance!

Problem:

1000 liters of gasoline have been accidentally released into Wayne Sound, which has a surface area of 22 sq km, and a prevailing wind from the south. The spilled gasoline contains 10% benzene. The salinity of the water is 25 parts per thousand. The air temperature is 24ºC and the barometric pressure is 760 mm Hg. The gasoline spill initially spreads out to form a slick with an area of 100 square meters and a depth of 1 m.

1. After 24 hours what fraction of the benzene has been volatilized?
2. After 24 hours what fraction of the benzene has been dissolved into the water?

Data for Benzene:
water solubility: 1700 mg/L
vapor pressure at 24ºC: 96.54 mm Hg
Henry's law constant: 0.74 L·atm/mol
molecular weight: 78.11 g/mol
density: 0.8786 g/cm³
log K(ow): 2.1

*K(ow) is the octanol-water partition coefficient where K(ow)=solubility in octanol/solubility in water
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