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Water wets glass because the force of adhesion between the glass molecules and water molecules is greater than the force of cohesion between the water molecules and glass molecules. Mercury does not wet glass because the force of cohesion is greater than the force of adhesion
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∙ 13y ago
Olupot Moses Marcel
Elizabeth Isabelle
Bridget
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∙ 11y agoThe glass of cold water will try to attain equilibrium (w.r.t temperature) and absorb heat from the surroundings. As a result the moisture present around the glass will condense on to the surface of the glass and the glass gets wet.
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∙ 12y agoThis is caused by any cold drink.
It's caused when the air outside of the glass cools down, trapping some of the water vapor, and or turning to precipitation on the outside of the glass, where it's cold.
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∙ 14y agoB'COS THE ADHESIVE FORCE BETWEEN THE GLASS MOLECULES AND THE WATER MOLECULES IS GREATER THAN THAT OF THE COHESIVE FORCE BETWEEN THE WATER MOLECULES AND THE GLASS MOLECULES.
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∙ 13y agobecause it has no shape of itself, it'll simply fill out the space it's in.
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∙ 11y agoThe surface tensions of water and mercury are very different.
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∙ 11y agobcos the adhesive force between the water molecules and glass molecules is greater than the cohesive force between them.
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Why does water wet your hands but mercury does not?
http://en.wikipedia.org/wiki/Surface_tension :)
Does water become liquid during condensation?
Water IS liquid.Condensation is the moisture on a window on a wet morning or a glass of water.
Why does mercury level goes down for a very short time when a mercury-in glass thermometer is placed in hot water?
The exterior of the bulb of the thermometer expands first, resulting in the mercury level to go down. After that the mercury in the bulb expands more than the glass bulb, resulting in the subsequent rise of the mercury level.
What State Of Matter Is The Least Dense water oil mercury or glass?
Oil will sink in water, so is the least dense.
Does liquid water rise higher in a narrow tube or a wide tube?
Rise or fall of liquid in a small passage or tube. When a glass tube of small internal diameter is inserted into water, the surface water molecules are attracted to the glass and the water level in the tube rises. The narrower the tube, the higher the water rises. The water is said to "wet" the tube. Water will also be drawn into the fibres of a towel, even if the towel is in a horizontal position. Conversely, if a glass tube is inserted into mercury, the level of the liquid in the tube falls. The mercury does not wet the tube. Capillarity is caused by the difference in attraction of the liquid molecules to each other and the attraction of the liquid molecules to those of the tube.
Can mercury wet a substance?
Mercury is a metal unlike water which have hydrogen bonding. Mercury does not wet most substances, because of its high cohesion and low adhesion to the glass mercury will not wet glass. Cohesion, along with adhesion(attraction between unlike molecules), can help explain mercury phenomena. Mercury has a surface energy over 6 times greater than that of water so there is a much greater attractive force between the atoms of mercury than between the molecules of water, so mercury does not wet glass.
What liquid is not wet?
The "wetting" that happens when an object is immersed in a liquid depends on the surface energy of the object and the capilary forces in action on the surface of the liquid. for example mercury will not "wet" glass but water can wet the same glass.
Why is mercury not wet even though its liquid?
Mercury does not wet glass due to one of it's most significant properties. Mercury will not cling to the glass that contains it.
What is strange about metal mercury?
Is a very heavy liquid and doesn't wet glass
What are advantages of metal mercury?
It doesn't wet surfaces. It doesn't stick to glass.
Why does a piece of glass float in mercury but sinks in water?
B/c the density of mercury is higher than that of glass, while the density of water is lower than that of water.
What is scientific reason for using mercury in thermometers?
Mercury does not wet the surface of glass, expands with little heat & it is shining white which helps in reading.
What would be least conductive cooper salt water glass or mercury?
Glass
What are the advantages of mercury as a thermometeric liquid?
As mercury has a low specific heat yet is a good conductor of heat it has been the choice for thermometers. The ease of reading is due to the fact that the mercury does not wet the walls of the glass.
What is glass wool soaked in water?
Wet thermal insulation.
Why does water wet your hands but mercury does not?
http://en.wikipedia.org/wiki/Surface_tension :)
Does water become liquid during condensation?
Water IS liquid.Condensation is the moisture on a window on a wet morning or a glass of water.
