1.2. Mass Transfer Concepts Fundamentals

Try these first

1. 1.

   What is mass transfer?

   Hint

   Think about how substances like water or air move.

2. 2.

   Define molecular diffusion.

   Hint

   Consider how dye spreads in water.

3. 3.

   What is the primary factor driving molecular diffusion?

   • Temperature
   • Concentration difference
   • Pressure

   Hint

   Think about how molecules want to spread out.

4. 4.

   True or False: Bulk motion and molecular diffusion can happen simultaneously.

   • True
   • False

   Hint

   Consider a flowing river with dissolved substances.

5. 5.

   Given an oil spill scenario, calculate the time it would take for half of the oil's mass to evaporate based on known rates of evaporation.

   Hint

   Use exponential decay concepts from chemistry.

6. 6.

   Analyze how the diffusion coefficient will change when a temperature shift occurs in a chemical dispersed in water versus air.

   Hint

   Consider how warmer fluids behave differently.