As a spherical ammonia vapor bubble rises in liquid ammonia, its diameter changes from 1 cm to
Question:
As a spherical ammonia vapor bubble rises in liquid ammonia, its diameter changes from 1 cm to 3 cm. Calculate the amount of work produced by this bubble, in kJ, if the surface tension of ammonia is 0.02 N/m.
Step by Step Answer:
As a spherical ammonia vapor bubble rises in liquid ammonia its diameter increases The ...View the full answer
Thermodynamics An Engineering Approach
ISBN: 9781259822674
9th Edition
Authors: Yunus Cengel, Michael Boles, Mehmet Kanoglu
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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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