Question

The arrangement of particles is most ordered in :

• A. Liquids
• B. Solids
• C. Gases
• D. All of the above

Answer 1

The correct option is B

Solids

The explanation for the correct answer:

Option(B)-Solids:

1. solid have a fixed shape and a fixed volume.
2. solid cannot be compressed.
3. solids have a high density.
4. Force of attraction between the particles in a solid is very strong.
5. The space between the particles of solids is negligible.
6. Now due to the strong force of attraction in solids, particles of solids are too close to each other. Hence particles of solids are arranged in a regular pattern.

The explanation for the incorrect answer:

Option(a)-Liquid:

1. Liquids have a fixed volume but no fixed shape.
2. Liquids can be slightly compressed. large pressure is required to compress them.
3. Liquids have lesser densities than solids.
4. Intermolecular forces of attraction are weaker than solids.
5. They have considerable space between the particles.
6. Particles of liquid are not arranged in a regular pattern like solids because the force of attraction is less than that of solids.

Option(C)-Gases:

1. Gases have neither a fixed shape nor a fixed volume.
2. Gases can be compressed easily.
3. Gases have the least density among the three.
4. Intermolecular forces of attraction are weakest.
5. The space between the gas particles is large.
6. Particles of gases are not arranged in a regular pattern due to the least force of attraction.

hence, the arrangement of particles is most ordered in Solids-Option(B).