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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is mass transfer?
💡 Hint: Think about substances moving from one phase to another.
Question 2
Easy
What influences the driving force in mass transfer?
💡 Hint: Focus on what causes substances to move.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the primary driving force of mass transfer?
- Temperature Difference
- Pressure Difference
- Concentration Difference
💡 Hint: Think about what causes materials to move from one area to another.
Question 2
True or False: Turbulence generally decreases mass transfer rates.
- True
- False
💡 Hint: Consider how chaotic flow can impact mixing.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A scientist is studying the rate of pollution removal from a lake. She finds that at higher flow velocities, the contamination levels drop faster due to increased turbulence. If the mass transfer coefficient at 5 m/s is measured to be 0.2 m/s, and at 10 m/s it increases to 0.5 m/s, how could she use this information to improve pollutant remediation strategies?
💡 Hint: Consider how varying flow rates impact the efficiency of cleanup efforts.
Question 2
Given a concentration gradient of 80 mg/L at the surface and 20 mg/L in the bulk fluid, calculate the driving force of the mass transfer. If the flow velocity increases, how might that affect the flux if the mass transfer coefficient remains unchanged?
💡 Hint: Think about the relationship between concentration differences and flow velocities.
Challenge and get performance evaluation