Which state of matter has no definite shape or volume because particles are far apart?

Which state of matter has no definite shape or volume because particles are far apart?

• A. Solids
• B. Liquids
• C. Gases
• D. Plasma

Answer: (C)

Gases have no definite shape or volume because their particles are far apart and move freely. The energy keeps them from sticking together, so they spread to fill whatever container they’re in and can be compressed or expanded easily. This contrasts with solids, where particles are tightly packed and keep a fixed shape and volume, and liquids, where particles are less tightly packed and have a definite volume but take the container’s shape. Plasma behaves like a highly energized gas with ionized particles, but still shares the idea of no fixed shape or volume at the right conditions.

Gases have no definite shape or volume because their particles are far apart and move freely. The energy keeps them from sticking together, so they spread to fill whatever container they’re in and can be compressed or expanded easily. This contrasts with solids, where particles are tightly packed and keep a fixed shape and volume, and liquids, where particles are less tightly packed and have a definite volume but take the container’s shape. Plasma behaves like a highly energized gas with ionized particles, but still shares the idea of no fixed shape or volume at the right conditions.