2.1. Mass Transfer Fundamentals

Try these first

1. 1.

   Define flux in the context of mass transfer.

   Hint

   Think about what drives mass transfer.

2. 2.

   What does the mass transfer coefficient measure?

   Hint

   Consider how it influences the rate of flux.

3. 3.

   What is the driving force of mass transfer?

   • Temperature
   • Concentration Difference
   • Pressure

   Hint

   Think about what influences mass movement.

4. 4.

   True or False: The mass transfer coefficient is a constant regardless of fluid properties.

   • True
   • False

   Hint

   Consider factors that affect mass transfer.

5. 5.

   A river has a concentration of a pollutant at its surface as 50 mg/L. If the concentration decreases to 5 mg/L at 10 cm from the surface, calculate the concentration gradient.

   Hint

   Use the formula for concentration gradient.

6. 6.

   Describe how increasing fluid velocity affects mass transfer in both laminar and turbulent flow scenarios. Provide an example scenario.

   Hint

   Consider both flow conditions and how they differ.