3. Equilibrium Relationships

Try these first

1. 1.

   What is a mass transfer coefficient?

   Hint

   Think about its role in determining flux.

2. 2.

   State Henry's Law in simple terms.

   Hint

   Consider it in terms of equilibrium.

3. 3.

   What does a mass transfer coefficient represent?

   • The speed of a liquid
   • The resistance to mass transfer
   • The amount of substance present

   Hint

   Consider its role in relationship to flux.

4. 4.

   Henry's Law states that in equilibrium, the concentration of a gas is related to its _____?

   • True
   • False

   Hint

   Recall how gases behave in liquids.

5. 5.

   A solution containing a pollutant has a concentration of 10 mg/L in water. Using Henry's constant (0.1 mg/L/atm), find the expected concentration of the pollutant in the gas phase if the partial pressure is 0.5 atm.

   Hint

   Apply Henry's Law.

6. 6.

   You have individual mass transfer coefficients for two different systems, k₁ = 5 m/s and k₂ = 1 m/s. Calculate the overall mass transfer resistance for these two phases.

   Hint

   Use the series resistance formula correctly.