26th November 2019

usgs
16

What are some examples of cohesion?

Essentially, cohesion and adhesion are the "stickiness" that water molecules have for each other and for other substances. You can see this in the picture to the right. The water drop is composed of water molecules that like to stick together, an example of the property of cohesion.

Also asked, what has surface tension?

Surface Tension. The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension. The molecules at the surface do not have other like molecules on all sides of them and consequently they cohere more strongly to those directly associated with them on the surface.

What is the surface tension of water?

Surface tension is the elastic tendency of a fluid surface which makes it acquire the least surface area possible. Surface tension allows insects (e.g. water striders), usually denser than water, to float and stride on a water surface. Surface tension is an important factor in the phenomenon of capillarity.

What is the value of surface tension of water?

Surface-tension values
Surface tension for some interfaces
InterfaceTemperatureγ in (mN·m1)
Water–air20 °C72.86 ± 0.05
Water–air21.5 °C72.75
Water–air25 °C71.99±0.05
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