Consider a soap bubble 2 mm in diameter and a droplet of water, also 2 mm in
Question:
Consider a soap bubble 2 mm in diameter and a droplet of water, also 2 mm in diameter. If the value of the surface tension for the film of the soap bubble is assumed to be the same as that for water, which has the greater pressure inside it?
(a) The bubble,
(b) The droplet,
(c) Neither—the pressure is the same for both.
Step by Step Answer:
c Neitherthe pressure is the same for both Expl...View the full answer
Engineering Fluid Mechanics
ISBN: 9781118880685
11th Edition
Authors: Donald F. Elger, Barbara A. LeBret, Clayton T. Crowe, John A. Robertson
Related Video
The property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of its molecules. The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension. The molecules at the surface of a glass of water do not have other water molecules on all sides of them and consequently, they cohere more strongly to those directly associated with them (in this case, next to and below them, but not above). is not really true that a \\\"skin\\\" forms on the water surface; the stronger cohesion between the water molecules as opposed to the attraction of the water molecules to the air makes it more difficult to move an object through the surface than to move it when it is completely submersed
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