Surface Tension Of Water Value
Learn about surface tension of liquids, its definition, units, and values. Find the surface tension of water and other common fluids at different temperatures. This paper presents a table and an equation for the surface tension of water from 0.01 to 374C, based on the International Association for the Properties of Steam (IAPS) recommendations.
It also reviews the experimental methods and uncertainties of measuring the surface tension of water at different temperatures. Because of the relatively high attraction of water molecules to each other through a web of hydrogen bonds, water has a higher surface tension (72.8 millinewtons (mN) per meter at 20 C) than most other liquids. [2] .
Learn about surface tension in physics. Get its definition, units, formulas, examples, facts, and worked problems. IAPS issued a Release on the Surface Tension of Ordinary Water Substance in 1976, based on these recommended values and with temperatures expressed on the International Practical Temperature Scale of 1968 (IPTS-68).
Water has a surface tension of 0.07275 joule per square metre at 20 C (68 F). In comparison, organic liquids, such as benzene and alcohols, have lower surface tensions, whereas mercury has a higher surface tension. Explore a comprehensive list of surface tension values for different liquids in (mN/m) units using our sortable table.
There are large discrepancies among the values of the surface tension of water reported in the literature. Existing experimental data have been carefully selected for the surface tension at 20 C and 25 C, and the average and standard deviations of the measured values have been calculated. This equation predicts exactly the values of surface tension that Lide (2001, p.
6-3) tabulates and matches the values in Batchelor (1970, p. 597) to within about 0.1%. Surface tension could be defined as the property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of the water molecules.
