2.1. Introduction to Interface Mass Transfer

Try these first

1. 1.

   What is an interface in mass transfer?

   Hint

   Think about where two states of matter interact.

2. 2.

   Define mass transfer resistance.

   Hint

   What gets in the way of efficient transfer?

3. 3.

   What is an interface in the context of mass transfer?

   • A solid boundary
   • The region between two phases
   • A concept of gas laws

   Hint

   Consider where two states of matter touch.

4. 4.

   True or False: Steady-state conditions imply that mass is accumulating at the interface.

   • True
   • False

   Hint

   Think about balance in and out.

5. 5.

   If the concentration gradient at the air-water interface is found to be X mol/m^3 and the mass transfer coefficient is Y m/s, calculate the flux across the interface.

   Hint

   Refer to Fick's law for guidance.

6. 6.

   Discuss how changes in temperature can affect the mass transfer coefficient at an air-water interface.

   Hint

   Think about how heat affects movement.