How does the surface tension of water compared to surface tension of other liquids?
Because of the relatively high attraction of water molecules to each other through a web of hydrogen bonds, water has a higher surface tension (72.8 millinewtons (mN) per meter at 20 °C) than most other liquids. Surface tension is an important factor in the phenomenon of capillarity.
Is surface tension the same for all liquids?
Surface tension may be expressed, therefore, in units of energy (joules) per unit area (square metres). Water has a surface tension of 0.07275 joule per square metre at 20 °C (68 °F). In comparison, organic liquids, such as benzene and alcohols, have lower surface tensions, whereas mercury has a higher surface tension.
What is surface tension and how does it relate to water?
Surface tension could be defined as the property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of the water molecules.
What liquid has a higher surface tension when compared to water?
There is only one liquid having higher surface tension and that's mercury which is a liquid metal with a surface tension of almost 500 mN/m.
How do you explain the fact that water has the highest surface tension but has the lowest viscosity?
Water has the highest surface tension but lowest viscosity because it is the smallest molecule in the series. Because water molecules are small they move very fast resulting in the high excess of energy and therefore high surface tension and the low viscosity.
Why is it that water has a higher surface tension than alcohol?
A greater degree of hydrogen-bonding means the molecules are attracted to each other effectively . That is, they stick close together well, and thus, are hard to break apart. As a result, it is more difficult to deform the surface of water than the surface of ethyl alcohol.
Why do some liquids have a higher surface tension than others?
Surface tension, capillary action, and viscosity are unique properties of liquids that depend on the nature of intermolecular interactions. Surface tension is the energy required to increase the surface area of a liquid by a given amount. The stronger the intermolecular interactions, the greater the surface tension.
What do you understand by surface tension and surface energy of liquids How is surface tension affected by warming?
Surface tension decreases with an increase in temperature. So these are the effects of temperature on viscosity and surface tension. In general, surface tension decreases when the temperature increases because cohesive forces decrease with increased molecular thermal activity.
Why does water have the greatest surface tension?
Water has a high surface tension because hydrogen bonds among water molecules resist stretching or breaking the surface. Water molecules are more strongly cohesive to each other than they are to air.
How do you explain the fact that water has the highest surface tension but has the lowest viscosity Brainly?
How do you explain the fact that water has the highest surface tension but the lowest viscosity? Water molecules at the surface of a drop are missing a few hydrogen bonds and are strongly pulled into the center of the drop, resulting in high surface tension.
What causes the high surface tension low vapor pressure and high boiling point of water?
Many unique and important properties of water -including its high surface tension, low vapor pressure, and high boiling point-result from hydrogen bonding.
Why does water have a higher surface tension than oil?
Water and oil do not interact due to differences in polarity. Water is a polar molecule, whereas oil is not. Water's polarity gives it a high surface tension. The difference in polarity also makes oil insoluble in water.
How does the surface tension differ from the surface energy?
The attractive force of the molecules present at the surface of a liquid towards each other is called the surface tension of that liquid. Surface energy is the equivalent attractive force present between the molecules at the surface of a solid substance.
How is surface tension and surface energy are related to each other?
Hence, surface tension = surface energy per unit area. Thus, surface tension is equal to the mechanical work done per unit surface area of the liquid, which is also called surface energy.
Why does water have a high surface tension quizlet?
Water has a high surface tension because of the hydrogen bonding of surface molecules.
How do you explain the fact that water has the highest surface tension but the lowest viscosity Referring again to the chart from previous problem?
How do you explain the fact that water has the highest surface tension but the lowest viscosity? Water molecules at the surface of a drop are missing a few hydrogen bonds and are strongly pulled into the center of the drop, resulting in high surface tension.
What causes the high surface tension low vapor pressure and high boiling point of water quizlet?
Many unique and important properties of water -including its high surface tension, low vapor pressure, and high boiling point-result from hydrogen bonding.
Why is surface tension of oil less than water?
Oil has less density as compared to water. Therefore, it will float on water. When Oil or any other non-polar liquid float over water, it decreases the number of hydrogen bonds to form with other surfaces. Hence, the force per unit length decreases.
How is surface energy related to surface tension of a liquid?
Solution : The surface energy per unit area of a surface is numerically equal to the surface tension.
What is the relation between surface tension and surface energy of a liquid?
Thus, the surface energy per unit area of a liquid is equal to its surface tension.
Why does water have a high surface tension?
Water has an unusually high surface tension because of the relatively high attraction of water molecules to each other through a web of hydrogen bonds, water has a higher surface tension than most other liquids.
Which best explains the surface tension of water quizlet?
Which best explains the high surface tension of water? D. Its hydrogen bonding interactions.
Why does water have the highest surface tension but the lowest viscosity?
Surface Tension, Heat of Vaporization, and Vapor Pressure Besides mercury, water has the highest surface tension for all liquids. Water's high surface tension is due to the hydrogen bonding in water molecules.
What factor causes the high surface tension low vapor pressure and high boiling point of water?
Cohesion and hydrogen bonding are the cause for water's low vapor pressure, high boiling point, and high heat capacity. Adhesion is water's property to adhere to a surface, and is the cause of capillary action.
What causes the high surface tension and low vapor pressure of water quizlet?
What causes the high surface tension and low vapor pressure of water? Hydrogen bonding.
Why does water have a strong surface tension?
Water has an unusually high surface tension because of the relatively high attraction of water molecules to each other through a web of hydrogen bonds, water has a higher surface tension than most other liquids.
How surface tension and surface energy are related to each other?
Hence, surface tension = surface energy per unit area. Thus, surface tension is equal to the mechanical work done per unit surface area of the liquid, which is also called surface energy.
What do you understand by surface tension and surface energy of liquids How is surface tension affected by warming long answer?
Surface tension decreases with an increase in temperature. So these are the effects of temperature on viscosity and surface tension. In general, surface tension decreases when the temperature increases because cohesive forces decrease with increased molecular thermal activity.
What are the factors affecting the surface tension of a liquid?
Surface tension is caused by the effects of intermolecular forces at the interface. Surface tension depends on the nature of the liquid, the surrounding environment and temperature. Liquids where molecules have large attractive intermolecular force will have a large surface tension.
Which property of water best explains the high surface tension?
Which property of water best explains the high surface tension? Cohesion is a property of water that enables the high surface tension.