Question

Differentiate between solids, liquids and gases: On the basis of energy

Answer 1

Kinetic energy:

• It is the energy possessed by an object due to its motion.
• So anything which moves has kinetic energy.
• Order of kinetic energy:

Gas > Liquid > Solid

Differentiation of three states of matter on the basis of energy.

SOLID	LIQUID	GAS
1. Particles have a strong intermolecular force of attraction.	1. Particles have less intermolecular force of attraction as compared to solids.	1. Particles have a very less intermolecular force of attraction as compared to solids and liquids.
2. Due to strong intermolecular force of attraction between particles their kinetic energy is less.	2. Due to moderate intermolecular force of attraction between particles their kinetic energy is more than that of solids.	2. Due to weak intermolecular force of attraction between particles their kinetic energy is more than that of solids and liquid.
3. Example: Sugar crystals	3. Example: Alcohol	3. Example: Nitrogen gas