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. Surface tension is a result of the intermolecular attraction within a liquid. Water has very strong intermolecular attraction, meaning strong surface tension. The intermolecular attraction in oil is rather weak.
Oil spills reduce the surface tension of water. The oil will float on top because most oils are lighter than water.
When oil is added to water the oil will remain on the surface of the water, separate from the water. Water has a higher density then the oil.
No. It does not. If you were to attempt to float a paperclip in both of the liquids it would float in water but not in oil.
yes they are very tense
72.8 mN / m
It doesn't.
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.
Hydrogen bonding. Water is a polar molecule so it is slightly negatively and positively charged on different ends and this leads to cohesion of the molecules; one to another. Alcohol is nonpolar.
It doesn't.
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.
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
Can you blow a bubble with pure water? NO WAY... because the surface tension of the water does not allow you to do so.Can you blow a bubble with soap-water solution? YES...Soap molecules contain hydrophobic chains that do not wish to stay in water. so they squeeze out to the surface of water and increases the gap between the water molecules on the surface, there by decreasing the surface tension of the water. With surface tension decreased you can blow a bubble.Here you can ask one more question...Why are Bubbles always spherical and not cuboid or some other shape?
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.
for example, if drops of water are placed on the top of a penny, the surface tension is going to hold the drops on top of the penny. when the penny can hold no more, it will all overflow. make sense?