Optimized and Refined Apparatus for Measuring Surface Tension with the Bubble-Pressure Method

Autor/inn/en	Bai, Yunshan; Li, Guoling; Li, Lei; Wang, Kewang; Li, Shirong; Liu, Huanhuan
Titel	Optimized and Refined Apparatus for Measuring Surface Tension with the Bubble-Pressure Method
Quelle	In: Journal of Chemical Education, 98 (2021) 3, S.1052-1056 (5 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Bai, Yunshan) ORCID (Li, Shirong) ORCID (Liu, Huanhuan)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
Schlagwörter	Science Instruction; Science Laboratories; Laboratory Equipment; Undergraduate Study; College Science; Chemistry; Measurement Equipment + Suchen Sie Ihr Suchwort? Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Laborausstattung; Grundstudium; Chemie; Messinstrument
Abstract	A modified apparatus for measuring surface tension with the bubble-pressure method is proposed. Compared with a traditional instrument, this apparatus improved the accuracy of maximum pressure difference measurement and achieved the hydrostatic pressure correction. The apparatus was employed to determine the surface tension values of distilled water and ethanol, respectively, at different temperatures. Additionally, the cross-sectional area of the ethanol molecule was obtained from the surface tension of ethanol solutions with different concentrations and Gibbs adsorption. It was found that all measured values were in accordance with literature data. Thus, the improved device exhibited excellent accuracy and reliability. Furthermore, all of the instrumental components were assembled into one body, making it easy for undergraduate students to operate. (As Provided).
Anmerkungen	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
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01