What are the maximum concentrations of O2 and CO2 in water in equilibrium with the atmosphere at 15 degrees Celsius?
READ: Chapters 10 & 11 of Hillel
Requirements: see
Module 3:
Instructions: Choose TWO (2) of the discussion questions below to respond to and follow the instructions provided within the question.
DISCUSSION QUESTIONS
Consider the sudden release (pulse addition) of any solute into the saturated zone. Briefly describe the processes that tend to dilute the concentration of the released solute in groundwater.
Briefly describe (100 words or less) how soils play a role in climate change, and how increasing temperatures could affect the global Carbon Balance.
Henry’s law states that the equilibrium concentration of a dissolved gas (e.g., O2 or CO2) is proportional to the partial pressure of that gas in the atmosphere.
What are the maximum concentrations of O2 and CO2 in water in equilibrium with the atmosphere at 15 degrees Celsius?
Do concentrations of O2 and CO2 vary with depth in a soil, and if so briefly describe HOW and WHY for both.
Assume the atmosphere is approximately 20% O2 (I know, it’s actually closer to 21%), and then tell me how the equilibrium concentration of dissolved O2 would be impacted if the atmosphere were PURE (100%) O2.
Additional Tasks & Activities.
Continue your research. Use the textbook, websites and the peer-reviewed literature.
Initial Post: (due Thursdays at 11:30 pm) See Course Schedule for specific dates
Respond to the two (2) discussion questions you selected.
Follow-Up Post: (due Saturdays 11:30 pm) See Course Schedule for specific dates
Pick 2 posts from you classmates to respond to.
Feel free to post other questions you have? What thoughts and opinions came to mind?
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