Download PDF – Physical composition of matter

In this composition of matter. We will be talking about the intermolecular force exerted between the molecules. Although there are so many factors behind the existence of physical composition of matter but here basically we will be dealing with the forces applied between molecules or particles. On this basis, it is divided into 3 types, i.e., solid, liquid and gases.

Solid:

• They have a rigid structure that cannot be changed easily.
• They have fixed shapes and volumes.
• They have the lowest energy.
• The molecules are regular and closely arranged.
• It cannot flow.
• It is difficult to compress.
• They have very little intermolecular space.
• The intermolecular attraction is high.
• In most of the solid substance, sound traveling seed is high.
• It occupies definite space .
• They need not any storage to contain.

Liquid:

• They have a definite volume.
• They don’t have definite shapes as they can take the shape of the container in which they are kept.
• They can flow easily from higher to lower levels.
• They don’t have any particular structure.
• It is nearly difficult to compress.
• The molecules are randomly placed and little sparsely arranged.
• They have medium energy.
• They have more molecular space.
• They can propagate sound easily but less than solids.
• It occupies space but can adjust.
• They need a container for storage.

Gas:

• They do not have a definite shape but fills completely in the container in which they are filled.
• They do not have definite volume.
• They do not require more space, as they can fill in completely in the given container despite its size.
• They can be compressed very easily.
• They have the highest energy.
• The molecules are randomly placed and more sparsely arranged.
• They have the lowest sound speed among all.
• They need a closed container for storage.