How is free energy used to understand biogeochemical cycling of chemicals in soils?

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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How is free energy used to understand biogeochemical cycling of chemicals in soils?

 

2. If phosphorus availability to a plant is measured using an extraction of the soil, does the measured value represent bioaccessibility or bioavailability?

 

3. Which of the following are not considered a soil a soil chemical: Pb2+, Fe3+, plant root, ferrihydrite, soil organic matter, soil microbe, NaHCO3 (s), AlOH2+, CO2 (g)?

 

4. Silicon has an electronegativity of 1.9 and Al3+ has an electronegativity of 1.6, which will have a more covalent bond with oxygen (electronegativity=3.44)? How might this affect dissolution of a mineral containing these elements?

 

5. What is the relationship between hydration energy, hydrated radius, and water exchange rate? What is a principle force that explains water-ion interactions?

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