Understanding Key Properties of Solids

This question asks to identify a correct characteristic property of the solid state of matter. Let's analyze the options based on the defining features of solids.

Analyzing Solid State Properties

Solids are characterized by:

• Definite shape and definite volume.
• Particles (atoms, ions, or molecules) are tightly packed in a fixed arrangement.
• Strong intermolecular forces holding the particles together.
• Very low compressibility.
• Very slow diffusion rates.

Evaluating the Options

• Option 1: Solids have no fixed shape. This is incorrect. Solids maintain a definite shape because their particles are held in fixed positions.
• Option 2: Solids diffuse easily. This is incorrect. Diffusion is the movement of particles from an area of higher concentration to lower concentration. In solids, particles are mostly fixed, making diffusion extremely slow.
• Option 3: Solids are highly compressible. This is incorrect. Since the particles in a solid are already closely packed, they cannot be easily pushed closer together, making solids nearly incompressible.
• Option 4: Solids have strong intermolecular forces. This is correct. The strong forces of attraction between particles are responsible for holding them in fixed positions, giving solids their rigidity, definite shape, and definite volume.

Therefore, the presence of strong intermolecular forces is a fundamental and correct property of solids.