1.6. Equilibrium and Mass Transfer

Try these first

1. 1.

   What drives mass transfer?

   Hint

   Think about why substances move in nature.

2. 2.

   Define equilibrium in the context of mass transfer.

   Hint

   What happens when there is no net movement?

3. 3.

   What is the main cause of mass transfer?

   • Temperature Changes
   • Concentration Gradients
   • Pressure Changes

   Hint

   Think about what gradient means in a physical sense.

4. 4.

   True or False: Equilibrium means there is no net mass transfer.

   • True
   • False

   Hint

   Consider the definition of equilibrium.

5. 5.

   Given a scenario where a chemical of certain concentration is released into a river system, predict the mass transfer rates using provided diffusion coefficients.

   Hint

   Start with the flux equation involving concentration coefficients.

6. 6.

   Analyze a case where an oil spill occurs and discuss how molecular diffusion and bulk motion would play a role over time.

   Hint

   Consider the environmental effects on diffusion coefficients and concentration gradients.