Practice Flux And Diffusion (1.7) - Introduction to Interphase Mass Transfer

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9 questions

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6 sample questions

Question 1.
Define flux in your own words.
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Think of it as a flow rate.
Question 2.
What does diffusion describe?
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Consider how scents spread in a room.
3Question 3.
What does flux measure?
- A. Rate of a substance per unit area
- B. Total concentration in a volume
- C. Temperature changes
- D. Resistance to movement
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Consider how we measure flow.
4Question 4.
True or False: Diffusion requires stirring.
- True
- False
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Recall how food coloring spreads.
Question 5.
If an oil spill has a diffusion coefficient of 0.2 m²/s and creates a concentration gradient of 10 mg/m³ across 3 m, find the flux.
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Apply the formula to get the answer.
Question 6.
Discuss how increasing temperatures might affect the diffusion coefficient of a pollutant in water.
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Think about how heat affects how freely substances move.

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