Question

What is the adhesive and cohesive force

Answer 1

$\huge\star\mathfrak\red{{Answer:-}}$

i) Cohesive force:

The force of attraction

between the molecules of the same

substance is called cohesive force or

force of cohesion. The force of attraction

between two air molecules or that between

two water molecules is a cohesive force.

Cohesive force is strongest in solids and

weakest in gases. This is the reason why

solids have a definite shape and gases do

not. Small droplets of liquid coalesce into

one and form a drop due to this force.

ii) Adhesive force:

The force of attraction

between the molecules of different

substances is called adhesive force or

force of adhesion. The force of attraction

between glass and water molecule is a

force of adhesion.

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Answer 2

Cohesion is the property of like molecules (of the same substance) to stick to each other due to mutual attraction. Adhesion is the property of different molecules or surfaces to cling to each other. ... This is due to the adhesive force between the water molecules and the molecules of the container.