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Unformatted text preview: Molecules in the interior experience an attractive force from neighboring molecules which surround on all sides Molecules on the surface have neighboring molecules only on one side (the side facing the interior) and thus experience an attractive force which tends to pull them into the interior The overall result of this asymmetric force on surface molecules is that: The surface of the liquid will rearrange until the least number of molecules are present on the surface o In other words the surface area will be minimized o A sphere has the smallest surface area to volume ratio The surface molecules will pack somewhat closer together than the rest of the molecules in the liquid o The surface molecules will be somewhat more ordered and resistant to molecular disruptions o Thus, the surface will seem to have a "skin" The "inward" molecular attraction forces, which must be overcome to increase the surface area, are termed the "surface tension"...
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This note was uploaded on 11/22/2011 for the course CHEMISTRY CHM1025 taught by Professor Laurachoudry during the Fall '10 term at Broward College.
- Fall '10