Mechanical Properties of Fluids

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Question
CBSEENPH11017801

Define interatomic forces and give an example?

Solution

The force between atoms of the molecule is called interatomic force.

E.g.The nucleus and electron cloud of a molecule is binded by electrostatic force. 

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Question
CBSEENPH11017803

What do you understand by intermolecular forces?

Solution

Intermolecular force is the force between the molecules of the substance is called intermolecular force.
There is a dipole-dipole interaction between the molecules.

Question
CBSEENPH11017804

What is the force of adhesion?

Solution

Adhesive force is the attractive force between two unlike molecules. They are caused by forces acting between two substances like electrostatic force (attraction due to opposing charges), mechanical force etc. 

E.g., Force of attraction between gum and paper.

Question
CBSEENPH11017806

What is the force of cohesion?

Solution

Cohesive attraction or cohesive force is the force of attraction between same types of molecules sticking together.