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2 cards from this section. Quick, good the night before a test.
What is the mass transfer coefficient?
Think about the units associated with mass transfer.
What does Henry’s Law relate in mass transfer?
Remember the gas-liquid equilibrium relationship.
What is the overall mass transfer flux related to?
Think about what drives mass transfer.
True or False: The mass transfer coefficient is the same for both liquid and gas phases.
Reflect on the definition of mass transfer coefficients.
Given that a chemical has a concentration of 20 mg/L in water and 0.5 mg/L in the air, calculate the mass transfer flux if the liquid and gas coefficients are 5.0 m/s and 2.0 m/s respectively.
Use the flux formula to account for individual mass transfer resistances.
A factory discharges wastewater with a concentration of a pollutant at 50 mg/L into a river with a concentration of 2 mg/L. If the mass transfer coefficients are 10 m/s for water and 5 m/s for air, determine how quickly the pollutant will spread to the air.
Remember to apply the resistance in the formula correctly.
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