The US EPA’s Maximum Contaminant Level (MCL) in drinking water is 0.1 mg/L or 100 ppb for chlorobenzene. The chlorobenzene concentration in the soil outside of a factory is 0.01 mg/kg, and the soil has a 6% organic content. Chlorobenzene has a reported octanol-water coefficient equal to 700. Estimate the organic carbon normalized partition coefficient, Koc, using the estimation procedures based upon equations 2.73 and 2.74 and the sediment/water partition coefficient. Use the sediment/water partition coefficient to predict the possible equilibrium concentration of chlorobenzene in the groundwater.
What will be an ideal response?
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What is loading the brush?
What will be an ideal response?
Which of the following statements is accurate?
An ammonia synthesis process works as follows: Fresh feed air and hydrogen are combined with a recycle stream and the combined stream is compressed to 10 MPa. The compressed stream enters a reactor, and a fraction of the entering nitrogen and hydrogen are converted into ammonia. The reactor effluent, still at 10 MPa, enters a condenser. The liquid and vapor streams leaving the condenser are in VLE. The liquid stream, which is almost pure ammonia, is the product. A fraction of the vapor stream leaving the condenser is purged, while the rest is recycled.
In what ways do surface datum feature symbol applications, axis datum symbol applications, and center plane datum symbol applications differ from each other?
A. When surface datums are shown on extension lines, they are offset from the dimension line arrows, while axis datums and center plane datums can align with dimension line arrowhead. B. In surface datum symbols the equilateral triangle is filled, while in axis datums and center plane datums the equilateral triangle is left unfilled. C. Axis datums and center plane datums are verified from one of the existing surfaces. D. The surface datum is the only one to position the part in relation to a datum reference frame. E. none of the above
Describe one method to determine if a ladder is correctly set up
What will be an ideal response?