Thermodynamics of adsorption of organic acids from aqueous solutions on activated charcoal. | [Science International • 1991]

Author(s):

1. M. Afzal: Chemistry Department, Quaid-e- Azam University (QAU), Islamabad, Pakistan

2. H. Ahmad: Chemistry Department, Quaid-e- Azam University (QAU), Islamabad, Pakistan

3. Rifat Jamila: Chemistry Department, Quaid-e- Azam University (QAU), Islamabad, Pakistan

Abstract:

Adsorption of organic acids acetic, propionic and oxalic acids from aqueous solution on activated characoal has been studied at different temperatures i.e.; (283, 293, 303, 313 and 323K). By employing Langmuir and Clausius-Clapeyron equations the (A H), free energy (A G), and entropy (A S) of adsorption were calculated. A H values obtained were in the order of 2-7.2 k cal per mole, indicating the physical nature of adsorption.

Page(s): 185-190

DOI: DOI not available

Published: Journal: Science International, Volume: 3, Issue: 3, Year: 1991

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