Practice Mass Transfer Across Interfaces (2) - Overall Mass Transfer Coefficient

Practice: Mass Transfer Across Interfaces

Lesson 2Overall Mass Transfer Coefficient

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9 questions

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2 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 mass transfer coefficient.
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Focus on the relationship between phases.
Question 2.
What does Henry's law state?
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Think about gas concentrations in liquids.
3Question 3.
What does a mass transfer coefficient measure?
- The speed of sound
- The rate of substance transfer
- The density of a fluid
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Think about the roles in phase interactions.
4Question 4.
True or False: The overall mass transfer resistance is the sum of resistances from the liquid and gas phases.
- True
- False
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Look at how resistances are treated in equations.
Question 5.
If a system has a liquid phase resistance of 1500 and a gas phase resistance of 300, calculate the total resistance and identify which phase controls the mass transfer.
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Identify the controlling phase based on resistance values.
Question 6.
A gas has a concentration of 0.05 mol/L, and the liquid phase has 2 mol/L. If the Henry’s constant is 40 L/mol, what will be the equilibrium concentration in the gas phase?
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Apply the formula learned from Henry's law.

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