Question

11 what causes gases to easily mix with each other compared to solids or liquids? a solids have higher energy content, preventing mixing b gases have particles that move independently and rapidly c high concentration of gases compared to liquids d gases have lower surface tension than liquids

Explanation:

• Option A: Solids have lower energy content (particles are in fixed positions with less movement) compared to gases, so this option is incorrect.
• Option B: Gas particles have high kinetic energy. They move independently (not held closely like in solids or liquids) and rapidly. This allows them to easily inter - mix with each other.
• Option C: Gases have lower concentration (more spread out) compared to liquids (liquids are more dense in terms of particle packing). So this option is wrong.
• Option D: While gases do not have surface tension (a property mainly of liquids), surface tension is not the reason for gas - gas mixing. Gas - gas mixing is due to particle motion.

Answer:

B. Gases have particles that move independently and rapidly