Application of thermodynamic characteristics to describe copper adsorption in some calcareous soils
Author
Source
Euphrates Journal of Agriculture Science
Issue
Vol. 13, Issue 4 (31 Dec. 2021)52 p.
Publisher
Publication Date
2021-12-31
Country of Publication
Iraq
No. of Pages
52
Main Subjects
Earth Sciences, Water and Environment
Topics
Abstract EN
This work includes studying the thermodynamic parameters such as Ko, ∆Go, ∆Ho, and ∆So determined in five calcareous soils at two different temperatures (298 oK and 318 oK) include Sharazor, Qaradagh, Bazian, Mawat, and Surdash differing in total calcium carbonate, organic matter, and cation exchange capacity of Sulaimani governorate in the Iraqi-Kurdistan region.
One gram of soil samples equilibrated at (298 oK and 318 oK) with 50 ml of solution CaCl2 (0.01M) containing a series of Cu concentrations (0, 2.5, 5, 10, 20, and 40) mg Cu L-1 as (CuSO4).
The values of the standard free energy (∆Go) were negative of the five soils ranging from (- 5.026 to - 4.009 kJ mol-1) and (- 5.201 to - 4.075 kJ mol-1) respectively at both 298 oK and 318 oK temperatures.
Entropy values (ΔS°) were negative in Sharazor and Bazian soil, while, entropy values (ΔS°) were positive at both temperatures (298 oK and 318 oK) in Qaradagh, Mawat, and Surdash soil.
This work includes studying the thermodynamic parameters such as Ko, ∆Go, ∆Ho, and ∆So determined in five calcareous soils at two different temperatures (298 oK and 318 oK) include Sharazor, Qaradagh, Bazian, Mawat, and Surdash differing in total calcium carbonate, organic matter, and cation exchange capacity of Sulaimani governorate in the Iraqi-Kurdistan region.
One gram of soil samples equilibrated at (298 oK and 318 oK) with 50 ml of solution CaCl2 (0.01M) containing a series of Cu concentrations (0, 2.5, 5, 10, 20, and 40) mg Cu L-1 as (CuSO4).
The values of the standard free energy (∆Go) were negative of the five soils ranging from (- 5.026 to - 4.009 kJ mol-1) and (- 5.201 to - 4.075 kJ mol-1) respectively at both 298 oK and 318 oK temperatures.
Entropy values (ΔS°) were negative in Sharazor and Bazian soil, while, entropy values (ΔS°) were positive at both temperatures (298 oK and 318 oK) in Qaradagh, Mawat, and Surdash soil.
American Psychological Association (APA)
Karim, Kamal Hama. 2021. Application of thermodynamic characteristics to describe copper adsorption in some calcareous soils. Euphrates Journal of Agriculture Science،Vol. 13, no. 4.
https://search.emarefa.net/detail/BIM-1297635
Modern Language Association (MLA)
Karim, Kamal Hama. Application of thermodynamic characteristics to describe copper adsorption in some calcareous soils. Euphrates Journal of Agriculture Science Vol. 13, no. 4 (2021).
https://search.emarefa.net/detail/BIM-1297635
American Medical Association (AMA)
Karim, Kamal Hama. Application of thermodynamic characteristics to describe copper adsorption in some calcareous soils. Euphrates Journal of Agriculture Science. 2021. Vol. 13, no. 4.
https://search.emarefa.net/detail/BIM-1297635
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 51-52
Record ID
BIM-1297635