A Simple and Fast Method for Investigating the Liquid-Vapor Equilibrium of the Water-Acetic Acid System
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| Title: | A Simple and Fast Method for Investigating the Liquid-Vapor Equilibrium of the Water-Acetic Acid System |
|---|---|
| Language: | English |
| Authors: | Patricia Prodan, Matteo Neffat, Renato Bonomi (ORCID |
| Source: | Journal of Chemical Education. 2024 101(3):1268-1273. |
| Availability: | Division of Chemical Education, Inc. and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc |
| Peer Reviewed: | Y |
| Page Count: | 6 |
| Publication Date: | 2024 |
| Document Type: | Journal Articles Reports - Descriptive |
| Education Level: | High Schools Secondary Education |
| Descriptors: | Chemistry, Science Instruction, Learning Activities, High School Students, Scientific Concepts, Science Experiments, Laboratory Experiments |
| DOI: | 10.1021/acs.jchemed.3c01285 |
| ISSN: | 0021-9584 1938-1328 |
| Abstract: | The activity proposed in this study aims to investigate the equilibrium between the liquid and vapor phases in a mixture of water and acetic acid, both of which are volatile substances. High school students can easily determine the composition of the liquid phase and its corresponding vapor phase at equilibrium using a simple and conceptually clear method. This procedure allows for the construction of an "x/y" diagram that illustrates the trend of the compositions of the two phases at equilibrium. This experiment is performed at normal atmospheric pressure and requires no special equipment. It can be completed in a short 2 h laboratory session. Students then spend 3 h processing the experimental data. The results are then compared with theoretical values obtained using the Raoult-Dalton equation, combined with Antoine's or Clausius-Clapeyron's equation, and closely match the expected literature values. |
| Abstractor: | As Provided |
| Entry Date: | 2025 |
| Accession Number: | EJ1460222 |
| Database: | ERIC |
| Abstract: | The activity proposed in this study aims to investigate the equilibrium between the liquid and vapor phases in a mixture of water and acetic acid, both of which are volatile substances. High school students can easily determine the composition of the liquid phase and its corresponding vapor phase at equilibrium using a simple and conceptually clear method. This procedure allows for the construction of an "x/y" diagram that illustrates the trend of the compositions of the two phases at equilibrium. This experiment is performed at normal atmospheric pressure and requires no special equipment. It can be completed in a short 2 h laboratory session. Students then spend 3 h processing the experimental data. The results are then compared with theoretical values obtained using the Raoult-Dalton equation, combined with Antoine's or Clausius-Clapeyron's equation, and closely match the expected literature values. |
|---|---|
| ISSN: | 0021-9584 1938-1328 |
| DOI: | 10.1021/acs.jchemed.3c01285 |
