Question

select the correct answer. when a perfume bottle is opened, some liquid changes to gas and the fragrance spreads around the room. which sentence explains this? a. gases do not have a definite volume. b. the particles of gases are closely packed. c. the force of attraction between particles in gases is very high. d. gases are not matter.

Explanation:

To solve this, we analyze each option:

• Option B: Gas particles are far apart (not closely packed), so this is incorrect.
• Option C: Intermolecular forces in gases are very weak (not high), so this is incorrect.
• Option D: Gases are matter (they have mass and occupy space), so this is incorrect.
• Option A: Gases have no definite volume, meaning they expand to fill the available space (like a room), which explains why the perfume gas spreads.

Answer:

A. Gases do not have a definite volume.