Question

A solid has a definite size and a definite _________ because the forces between its ___________ are very __________.

• A. volume
• B. particles, strong

Answer 1

• Particles in a solid are packed closely together and do not move much. Each atom's electrons are constantly in motion, causing the atoms to vibrate slightly, but they remain fixed in their positions.
• As a result, the kinetic energy of particles in a solid is extremely low. So a solid has a definite size and volume.

Therefore, a solid has a definite size and a definite volume because the forces between its particles are very strong.