3. Partition Constants for Other Systems

Try these first

1. 1.

   Define unsaturated soil.

   Hint

   Think about what each pore contains.

2. 2.

   What does it mean when soil is described as wet?

   Hint

   Think of water coverage over soil particles.

3. 3.

   What type of soil contains both air and water in its pore spaces?

   • Saturated
   • Unsaturated
   • Dry

   Hint

   Think about what else fills the pores in saturated soil.

4. 4.

   True or False: Wet soil means all pores are filled with water.

   • True
   • False

   Hint

   Consider the definition of saturation.

5. 5.

   A soil sample has a KA31 value significantly lower than expected after rainfall. Analyze why moisture content and saturation might affect this.

   Hint

   Consider how moisture saturation limits surface interactions.

6. 6.

   Describe the steps to conduct an experiment to determine the partition constant of a pesticide in both wet and dry soils. What factors would you measure?

   Hint

   Think about necessary controls and measuring techniques.