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∙ 11y ago
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∙ 14y agosurfactants
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Why does dawn dish soap repel pepper?
Soap breaks the surface tension of water. Pepper will only float where there is strong surface tension.
What attraction is important to water striders?
Surface tension is important to water striders because surface tension gives them the ability to float and not sink and drown.
What is water's surface tension?
Here are some explanations of surface tension:Surface tension is a property of the surface of a liquid that causes it to behave as an elastic sheet. It allows insects, such as the water strider (pond skater, UK), to walk on water too. It allows small objects, even metal ones such as needles, razor blades, or foil fragments, to float on the surface of water, and it is the cause of capillary action.5.18 pounds / feet at 0 degree Celsius. Or as I remember it is 72 dyne / centimeter at 25 degree Celsius. The surface tension of water is the force required in order to float at the water's surface, hence making water to behave like an elastic sheet.Water surface tension is contractive tendency of the surface of a liquid that allows it to resist an external force. The beading of water on a waxy surface, such as a leaf, is an example of water surface tension.
What is surface tension in hair?
Surface tension is when liquid can not penetrate the hair shaft, for example when washing your hair water isn't adsorbed and instead water droplets form on top of the hair without actually sinking into it straight away.
Why mosquito does not sink on water surface?
Mosquitoes and other small insects can stay afloat on water because water exhibits a property called "surface tension", where a thin film "seems" to cover the water surface. This has something to do with intermolecular forces of attraction.
Does gasoline have a low surface tension?
yes it is lower than the surface tension of water
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
Why does soap reduce the surface tension of water?
Soap will lower the surface tension of water. Like any surfactant soap will lower the surface energy by disrupting the strong inter-molecular hydrogen bonding that confers such a strong surface tension to water.
What is the effect of pH on surface tension?
For most liquids, an increase in pH results in decreased surface tension. This has been attributed to lower attraction force between molecules when pH rises.
What causes detergent to lower the surface tension of water?
Some mood music.
Why does acetone have a lower surface tension than water?
water is more polar than acetone
Why did heating the water affect the surface tension?
Surface tension is lower at higher temperatures.
What is the effect of sodium chloride on the surface tension of water?
The surface tension of water is increased for salted water.Sodium chloride increase the surface tension of water.
What is the effect of detergent on the surface tension?
Detergent has the effect of reducing the size of the water molecules thereby reducing the surface tension of the water. This allows for the small water molecules to integrate themselves farther into fabric to remove contaminants.
What makes a needle to float in water?
Water surface tension hold the needle on the water surface.
What property of water let's bugs walk on water?
surface tension
Is there a way to increase the surface tension of water?
The surface tension of "pure" water against air at 20 degrees C is 72.75 dynes/cm. This increases with cooling and decreases with heating. Most inorganic solutes increase the surface tension of the solution when dissolved in water. Most mineral acids decrease the surface tension of the solution in water (sulfuric acid is the most obvious exception). Most organic compounds decrease the surface tension of the solution in water (organic acids and alcohols are often exceptions). It is important to note that we are talking about increasing and decreasing the surface tensions of solutions of these things in water with respect to distilled water. In order to change the surface tension of distilled water, just changing the temperature will suffice. PS : At 0 degrees Celsius, the surface tension of water is 75.6 dynes/cm, at 100 degrees it is only 58.9 dynes/cm.
