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4 cards from this section. Quick, good the night before a test.
What is mass transfer?
Think about substances moving from one phase to another.
What influences the driving force in mass transfer?
Focus on what causes substances to move.
What is the primary driving force of mass transfer?
Think about what causes materials to move from one area to another.
True or False: Turbulence generally decreases mass transfer rates.
Consider how chaotic flow can impact mixing.
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?
Consider how varying flow rates impact the efficiency of cleanup efforts.
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?
Think about the relationship between concentration differences and flow velocities.
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