What is Cohesion

Cohesion refers to the force that holds together molecules of the same substance. This is why water forms droplets when it falls on a surface rather than spreading out flat. Inside the droplet, water molecules are attracted to each other, pulling themselves closer together.

This force allows insects to walk on water without sinking. The surface tension created by cohesion makes the water’s surface strong enough to hold their weight.

• The ability of molecules to cohere depends significantly on their structure. Water, for example, is highly cohesive due to hydrogen bonding.
• Cohesion increases surface tension. This is evident when small objects float on water without sinking.
• Increasing temperature generally decreases cohesion as molecules move more vigorously and are less able to cling together.

Adhesion and cohesion tell us how substances interact at the molecular level. Adhesion refers to the attractive force between molecules of different substances. It allows substances to cling to different materials while cohesion is the attractive force between molecules of the same substance. It keeps molecules together within the substance. In this article, we will learn the differences between Adhesion And Cohesion in detail.