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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_tension
Added emphasis for readability.
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Does weight or density play a bigger role in whether or not an object will break surface tension?
Weight plays a bigger role in whether an object will break surface tension. Objects with greater weight exert more force on the surface tension, making them more likely to break through. Density affects the object's ability to displace water, but weight is the determining factor in breaking through the surface tension of water.
How do objects float differently in salt water than in fresh water?
Objects float higher in salt water compared to fresh water because salt water is denser than fresh water. The higher density of salt water provides more buoyant force, causing objects to float higher. Additionally, salt water can also affect the rate at which objects sink or float due to changes in the water's viscosity and surface tension.
Do liquids that have higher tension produce drops that are flatter or more nearly sperical ttan liquids with lowersurface tension?
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.
What causes the high surface tension and low vapor pressure of water?
Hydrogen bonding causes the inward force that minimizes the surface area of water, and the tendency of water molecules escaping this bond to become vapor is slim and/or slow, thus creating it's low pressure.
How a pin can float on the water in a cup?
A pin can float on water due to surface tension. Water molecules at the surface are more attracted to each other than to the air above, allowing the pin to sit on top of the water without sinking. This surface tension supports the weight of the pin, enabling it to float.
Does surface tension change when bleach is added to it?
Yes, surface tension can change when bleach is added to water. Bleach is a surfactant that can reduce the surface tension of water by disrupting the hydrogen bonding between water molecules. This can lead to a decrease in surface tension and cause water to spread more easily.
Why can you fit more fresh water drops on a nickel then soapy water drops?
Because the hydrogen molecules in water want to stay connected and once you add soap it messes with the bonds and and they don't stay bonded as strongly. Also the mass and density of the water changes when you add soap.
Why kerosene has more surface tension than water?
Kerosene has more surface tension than water because the molecules in kerosene are non-polar, which allows them to pack closely together at the surface. This stronger intermolecular attraction results in a higher surface tension compared to water, which has polar molecules that are more prone to forming hydrogen bonds, reducing surface tension.
Does water temperature affect surface tension on a penny?
Yes, water temperature can affect surface tension on a penny. As water temperature increases, surface tension generally decreases. This means that with higher water temperature, the water is less likely to bead up and more likely to spread out on the penny, reducing the surface tension.
Surface tension of water at different temperatures?
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.
Is there anything such as water tension?
Yes. It is more specifically called water surface tension and it is the result of water's ability to form hydrogen bonds.
How does soap effects the surface tension if water?
the surface tension has bonds, and the soap breaks those bonds, so if the soap water is put onto a surface.. it will slip off
Do you think Salt water will have more or less surface tension than plain tap water?
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Which has more surface tension clean water or soapy water?
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.
Does vegetable oil have more surface tension than water?
No. Vegetable oil's surface tension is approximately 34 dynes/cm while ultrafiltrated water is 72.40 dynes/cm.
How does sodium carbonate affect the surface tension of water?
sodium carbonate has quite amount of salt in it. And the salt water is inversely proportional to water containing soap.Hence sodium carbonate affect the surface tension of water rather we say sodium carbonate loss the strength of the surface tension of the water.thanks by,(Arjun Babhulkar)
True or false Addition of a detergent to water increases the surface tension of the water?
False. Addition of a detergent to water decreases the surface tension of the water by disrupting the hydrogen bonding between water molecules, allowing it to spread out more easily and interact with other substances.
