Cohesion and adhesion
The phenomenon of attractive forces acting between particles of different bodies is called adhesion. The forces acting between the particles are called adhesion forces.
A thick nail can be bent. A ballpoint pen always retains a certain shape. Chalk sticks to the blackboard, paint to the wall. All this shows that attractive forces act both between the particles of one body (e.g. nail) and between the particles of different substances - do my assignment for me (e.g. paint and wall).
The phenomenon of attractive forces acting between the particles of a body is called cohesion. The corresponding forces are called cohesive forces - do my engineering assignment for me . Cohesive forces cause the strength and elasticity of bodies. They are large in solids, smaller in liquids and very small in gases.
The phenomenon of attractive forces acting between particles of different bodies is called adhesion. The corresponding forces are called adhesion forces.
Adhesive forces cause different bodies to adhere to each other (chalk to a blackboard, paint to a wall, glue to wood). The action of adhesives is also based on adhesion - https://domyhomework.club/buy-assignment/ . The amount of adhesive forces depends on the substances involved and can vary greatly. It is particularly large for adhesives, paints and varnishes, and relatively small for most other substances.
Adhesion also occurs, for example, between water and the walls of vessels, such as measuring cylinders. Due to the adhesion forces, a curvature of the edge occurs. When reading from graduated cylinders, this curvature of the rim must be taken into account. Thus, the volume is not 8 ml, but 7 ml.
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