Practice Equilibrium Relationships (3) - Overall Mass Transfer Coefficient

Practice: Equilibrium Relationships

Lesson 3Overall Mass Transfer Coefficient

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8 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
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is a mass transfer coefficient?
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Think about its role in determining flux.
Question 2.
State Henry's Law in simple terms.
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Consider it in terms of equilibrium.
3Question 3.
What does a mass transfer coefficient represent?
- The speed of a liquid
- The resistance to mass transfer
- The amount of substance present
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Consider its role in relationship to flux.
4Question 4.
Henry's Law states that in equilibrium, the concentration of a gas is related to its _____?
- True
- False
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Recall how gases behave in liquids.
Question 5.
A solution containing a pollutant has a concentration of 10 mg/L in water. Using Henry's constant (0.1 mg/L/atm), find the expected concentration of the pollutant in the gas phase if the partial pressure is 0.5 atm.
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Apply Henry's Law.
Question 6.
You have individual mass transfer coefficients for two different systems, k₁ = 5 m/s and k₂ = 1 m/s. Calculate the overall mass transfer resistance for these two phases.
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Use the series resistance formula correctly.

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