sion of 73 mJ/m² . A stable f vith 0.2 mm radii and film thi ow much was the liquid surfa
sion of 73 mJ/m² . A stable f vith 0.2 mm radii and film thi ow much was the liquid surfa
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![Describe what is the Gibbs-Marangoni effect and how it relates to the stabilization of
a foam.
A pure liquid has a surface tension of 73 mJ/m². A stable foam, produced by adding a surfactant,
consists of spherical bubbles with 0.2 mm radii and film thicknesses of 30 nm. The Hamaker
constant is 4.5 x 10-20 J. By how much was the liquid surface tension changed by adding the
surfactant?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1ccbd5b8-7004-4eac-8f28-afceab0bd4ca%2F5194910f-c16d-4a31-951f-01dec77379ff%2Favmuaqa_processed.png&w=3840&q=75)
Transcribed Image Text:Describe what is the Gibbs-Marangoni effect and how it relates to the stabilization of
a foam.
A pure liquid has a surface tension of 73 mJ/m². A stable foam, produced by adding a surfactant,
consists of spherical bubbles with 0.2 mm radii and film thicknesses of 30 nm. The Hamaker
constant is 4.5 x 10-20 J. By how much was the liquid surface tension changed by adding the
surfactant?
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