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A critical review of the estimation of the thermodynamic parameters on adsorption equilibria. Wrong use of equilibrium constant in the Van't Hoof equation for calculation of thermodynamic parameters of adsorption
Abstract
Abstract In the adsorption literature, the Van't Hoff equation is used in different manners without any criteria about the concepts of physical-chemistry of equilibrium for calculation of thermodynamic parameters of adsorption. Indeed, the equilibrium constant (K) should be dimensionless for being used in the Van't Hoff equation. However, this is not a simple adjustment of units, as being spread in the literature, to become K dimensionless. In this paper, it will be calculated the equilibrium constants using numeric examples and show the flaws of the thermodynamics calculations, when the value of K is wrongly calculated, and what are the expected results of the changes in enthalpy (ΔH°) and changes in the entropy (ΔS°) that are spread in the literature.
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Citations
Cited by
Zheng, Y., Cheng, B., You, W., Yu, J., & Ho, W. (2019) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2019.02.013 · Cited by 465
On validity, physical meaning, mechanism insights and regression of adsorption kinetic models
Vareda, J. P. (2023) · Journal of Molecular Liquids · doi:10.1016/j.molliq.2023.121416 · Cited by 380
Zhao, X., Wang, X., & Lou, T. (2021) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2020.124054 · Cited by 322
Hasanzadeh, M., Simchi, A., & Shahriyari Far, H. (2020) · Journal of Industrial and Engineering Chemistry · doi:10.1016/j.jiec.2019.09.031 · Cited by 244
Chen, J., Lin, S., & Yu, J. (2021) · Separation and Purification Technology · doi:10.1016/j.seppur.2020.117710 · Cited by 137
Metadata
- Authors
- Lima, E. C., Hosseini-Bandegharaei, A., Moreno-Piraján, J. C., & Anastopoulos, I.
- Venue
- Journal of Molecular Liquids
- Publisher
- Elsevier BV
- Published
- 2019-01
- Volume
- 273
- Pages
- 425-434
- ISSN
- 0167-7322 (ISSN-L)
- OpenAlex
- W2895872532
- Cited by
- 1,882
- References
- 0
- FWCI
- 58.77
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: A critical review of the estimation of the thermodynamic parameters on adsorption equilibria. Wrong use of equilibrium constant in the Van't Hoof equation for calculation of thermodynamic parameters of adsorption. https://app.cochat.ai/papers/10.1016/j.molliq.2018.10.048
- The paper
- Lima, E. C., Hosseini-Bandegharaei, A., Moreno-Piraján, J. C., & Anastopoulos, I. (2019). A critical review of the estimation of the thermodynamic parameters on adsorption equilibria. Wrong use of equilibrium constant in the Van't Hoof equation for calculation of thermodynamic parameters of adsorption. Journal of Molecular Liquids. https://doi.org/10.1016/j.molliq.2018.10.048
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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