Application of thermodynamic characteristics to describe copper adsorption in some calcareous soils

Author

Karim, Kamal Hama

Source

Euphrates Journal of Agriculture Science

Issue

Vol. 13, Issue 4 (31 Dec. 2021)52 p.

Publisher

University of Babylon College of Agriculture (Previously) / Al-Qasim Green University College of Agriculture (Currently)

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