What is the cohesive force of water?
What is the cohesive force of water?
Cohesion of water Cohesion refers to the attraction of molecules for other molecules of the same kind, and water molecules have strong cohesive forces thanks to their ability to form hydrogen bonds with one another. Thus, the water molecules at the surface form stronger interactions with the neighbors they do have.
How does hydrogen bonding cause high surface tension in water?
When many water molecules form hydrogen bonds with other water molecules, they form a lattice of water molecules, which is strong and flexible. This creates a high surface tension. As a result, this molecule at the surface tends to be pulled into the bulk of the liquid and thus minimizes the surface area of a liquid.
What allows water molecules to bind tightly to one another?
This sticking together of like substances is called cohesion. Depending on how attracted molecules of the same substance are to one another, the substance will be more or less cohesive. Hydrogen bonds cause water to be exceptionally attracted to each other. Therefore, water is very cohesive.
When there is a capillary depression What will be the angle of contact between the mercury and glass tube?
Mercury causes capillary depression with an angle of contact of about 1300 in a clean glass in contact with air.
What property explains why some insects can walk on water?
Water striders are small insects that are adapted for life on top of still water, using surface tension to their advantage so they can “walk on water.” Water acts different at the surface. Water molecules are attracted to each other and like to stay together, especially on the surface where there is only air above.
How will the meniscus be if adhesive flow is more than cohesive force?
Meniscus. The curved surface of a liquid inside a container is the meniscus. When the cohesive forces between the liquid molecules are greater than the adhesive forces between the liquid and the wall s of the container, the surface of the liquid is convex.