Practice Advection (2.3) - Interphase Mass Transfer – Application to Environmental Interfaces

Practice: Advection

Lesson 2.3Interphase Mass Transfer – Application to Environmental Interfaces

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9 questions

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4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Define advection in your own words.
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Think about how rivers move water and anything in it.
Question 2.
Explain how molecular diffusion differs from advection.
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Consider what drives each process.
3Question 3.
What is advection?
- The process of diffusion
- Movement of fluid carrying substances
- A type of pollution
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Think about how fluids carry objects downstream.
4Question 4.
True or False: Diffusion is always the dominant process in moving pollutants in flowing water.
- True
- False
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Consider the speed of flowing rivers versus still waters.
Question 5.
A chemical spill occurs in a river where flow velocity is measured at 2 m/s. If diffusion coefficient for the pollutant in water is 1 x 10^-5 m^2/s, calculate the effective transport mechanism when both processes co-exist.
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Compare coefficients of both processes.
Question 6.
You are tasked with modeling the pollutant transport in a groundwater system. How does the porosity of the soil impact both advection and diffusion?
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Consider how fluid can move through water-saturated systems.

5 more questions in this section. Enroll free to practise them all.