Practice Estimation Of Flux From Sediment To Water (3) - Evaporation from Different Surfaces

Practice: Estimation of Flux from Sediment to Water

Lesson 3Evaporation from Different Surfaces

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9 questions

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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Define flux in your own words.
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Think about flow across surfaces.
Question 2.
What does DNAPL stand for?
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Consider the terms dense and non-aqueous.
3Question 3.
What does DNAPL stand for?
- Dense Non-Aqueous Phase Liquid
- Dissolved Non-Aqueous Phase Liquid
- Dense Nitrate Aqueous Phase Liquid
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Break down the terms - what does each part indicate?
4Question 4.
True or False: The mass transfer coefficient is the same for all substances.
- True
- False
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Consider the differences in substance properties.
Question 5.
Considering a river contaminated with DNAPL, if the mass transfer coefficient is estimated to be 0.1 cm/hr and the concentration gradient is found to be 5 mg/L, calculate the flux. Show all steps involved.
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Pay close attention to unit conversions and apply the formula systematically.
Question 6.
Devise a plan to assess the flow of a new contaminant into a sediment, accounting for environmental factors like water velocity and temperature. Identify what data you would need.
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Consider how environmental factors interact with contaminant properties during your assessment.

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