Question

Which of the following is correct regarding properties of solids?

• A. Solids do not have translatory motion or rotatory motion
• B. Solids are negligibly compressible
• C. Thermal expansion in solids is high
• D. Intermolecular force of attraction is maximum in solids

Answer 1

Answer: (A), (B), (D)

Intermolecular force of attraction is maximum in solids

Solids have vibratory motion, since position of molecule in the crystal lattice is fixed so they vibrate about their fixed position.
Solids are least compressible since they retain a fixed volume and shape. They are not easily compressible as there is little space between particles.
Thermal expansion in solids is least since atoms vibrate in their own position. The relative increase in the size of the solids is relatively small.
Intermolecular force of attraction is maximum in solids when compared with liquids and gases.