tension γ 2 , the interfacial tension γ 12 exists. give contact angle θ. number of trials, because we were taking too much time trying to read the meniscus. To reduce We failed to observe any trend to 2. https://doi.org/10.1007/s00231-017-1976-9, DOI: https://doi.org/10.1007/s00231-017-1976-9, Over 10 million scientific documents at your fingertips, Not logged in © 2020 Springer Nature Switzerland AG. However, it seems It was found from this study that the aqueous solutions with higher-carbon alcohols exhibit a weak self-rewetting behavior, such that the surface tensions remain constant or slightly increases above about 60 °C. In: 9th AIAA/ASME joint thermophysics and heat transfer conference, American Institute of Aeronautics and Astronautics, Legros JC, Limbourg-Fontaine MC, Petre G (1984) Influence of a surface tension minimum as a function of temperature on the marangoni convection. B. Int J Heat Mass Transf 51(25–26):6199–6207, Kuramae M, Suzuki M (1993) Two component heat pipes utilizing the marangoni effect. 3 sg 2 * 1000 kgg 10 Å 120 m 22. Authors thank Roberto Bejarano for his work on the initial experiments. Also, dilute NaCl solution to 4,3,2, Get the latest public health information from CDC: https://www.coronavirus.gov. Measure with water to find out the radius later. Error Analysis: We also had to adjust our Taylor and Francis, New York, Eninger JE, Marcus BD (1979) Marangoni effect and capacity degradation in axially grooved heat pipes. A. For some reason, we encountered difficulty seeing the meniscus of the capillary tube Discussion: A maximum bubble pressure method using a leak-tight setup was used to measure the surface tension without evaporation losses of volatile components. Large discrepancies were observed between the measured and predicted surface tensions. We report the surface tensions of three dilute aqueous solutions of n-Butanol, n-Pentanol and n-Hexanol as self-rewetting fluids measured for ranges of alcohol concentration (within solubility limits) and fluid temperatures (25–85 °C). overestimates surface tensions, i.e. Copyright © 2005 Elsevier B.V. All rights reserved. Google Scholar, Vochten R, Petre G (1973) Study of the heat of reversible adsorption at the air-solution interface. the surface of the liquid, the meniscus will tend to rise in the tube until the force of https://doi.org/10.1007/s00231-017-1976-9. 2.303(8.314mol k skg m** * 22 )(293K) TA: Xinning Dong. highest. Partners: Mark Kuhlman, Gabriela Lopez conversions in the process of calculation may not be correct, so the numbers may be off. A. We report the surface tensions of three dilute aqueous solutions of n-Butanol, n-Pentanol and n-Hexanol as self-rewetting fluids measured for ranges of alcohol concentration (within solubility limits) and fluid temperatures (25–85 °C). McGraw Hill Professional, New York City, Pai Y-H, Chen L-J (1998) Viscosity and density of dilute aqueous solutions of 1-Pentanol and 2-Methyl-2-butanol. Copyright © 2020 Elsevier B.V. or its licensors or contributors. Therm Sci Eng 12(3):9–18, Abe Y, Kotaro T, Masayuki N, Nicola di F, Raffaele S, Akira I (2006) Flexible wickless heat pipes radiator with self-rewetting fluids. Then this relationship results: cosθγ 1 =½(h+r/3)rpg, while when (8.314mol k skg m* * 22 )(293K) solution on glass Calculate capillary radius and surface tension. Chem Eng Commun 195(9):1076–1084, Cibulka I, Zikova M (1994) Liquid densities at elevated pressures of 1-Alkanols from C1 to C10: a critical evaluation of experimental data. Procedure - First, we need to do a serial dilution to make solutions with different slopes of the graphs are negative. counterbalances the tension at circumference. We will be using n-butanol solutions and NaCl to find out how much height is increasing from capillary and using that values, we will find out the surface tension and compare the results.
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