It doesn't.
Because of the polarity of the water molecule, hydrogen bonds form between them. This results in the higher surface tension. Oil is nonpolar, so hydrogen bonds do not form between the molecules, so the surface tension is less.
no, beacuse there is more sugars patick present in it so it floats
Yes, pure water is a one molecule based structure, which hold together better than a mixture. When soap or other chemical is added, it breaks surface tension by getting in the way of each water molecule. Try putting water drops on a penny to build a bubble, then add a small drop of soap to it, you'll see that when soap is added, the water bubble collapses.
water does not lie entirely flat, the surface is convexed, causing a similar effect as a magnifying glass.
Fill your container with water. Take a tissue, and rip it until you have maybe the size of half a dollar bill. Place the paper clip on the floating tissue. Poke the tissue with a pencil (not the paper clip), and when the tissue floats to the bottom, the paper clip will still be there.
Kerosene will evaporate before water, given equal volumes and similar environmental conditions. The reason: water has considerable surface tension, brought about by hydrogen bonding between its very polar molecules. Kerosene is a hydrocarbon, and is non-polar, which means its molecules do not have a positive or a negative end. Water's surface tension resists evaporation. Kerosene's lack of surface tension (because of its non-polarity) makes it evaporate more quickly.
Surface tension of water decreases as temperature increases. At lower temperatures, water molecules are more closely packed, leading to stronger intermolecular forces and higher surface tension. As temperature rises, water molecules gain kinetic energy and move more freely, causing weaker intermolecuar attractions and lower surface tension.
Yes. It is more specifically called water surface tension and it is the result of water's ability to form hydrogen bonds.
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No. Vegetable oil's surface tension is approximately 34 dynes/cm while ultrafiltrated water is 72.40 dynes/cm.
They use it to take out harmful substances in a drug.
water is more polar than acetone
The term interfacial tension or surface tension means the contractive tendency of a liquid that lets it resist and external force. Interfacial tension could be observed from the floating of objects on the surface of water, even though they are more dense than water.
Surface tension causes molecules to hold to themselves more tightly. Therefore high surface tension liquids, like pure water, will form a taller drop and low surface tension substances, like oil, will spread out and be flat.
Because of the polarity of the water molecule, hydrogen bonds form between them. This results in the higher surface tension. Oil is nonpolar, so hydrogen bonds do not form between the molecules, so the surface tension is less.
no, beacuse there is more sugars patick present in it so it floats
Cold water has stronger (better) surface tension.Surface tension is dependent on temperature. For that reason, when a value is given for the surface tension of an interface, temperature must be explicitly stated. The general trend is that surface tension decreases with the increase of temperature, reaching a value of 0 at the critical temperature.From: http://en.wikipedia.org/wiki/Surface_tensionAdded emphasis for readability.dfsfdytrhjtkjkjh