Any chemical or environmental engineers or scientists, please help!

  • hartfan

    Posts: 1037

    Feb 13, 2009 8:33 PM GMT
    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
  • Posted by a hidden member.
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    Feb 14, 2009 2:16 AM GMT
    Dude...you want one of us to do your Industrial Hygiene homework for you? Isn't that cheating?

  • hartfan

    Posts: 1037

    Feb 14, 2009 2:42 AM GMT
    mikes39 saidDude...you want one of us to do your Industrial Hygiene homework for you? Isn't that cheating?



    Not everything. I'm just stuck with how to start. I couldn't figure out how the solubility in each part.
  • Posted by a hidden member.
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    Feb 14, 2009 2:42 AM GMT
    I think i did this problem in hazardous waste management 441! haha