Question

a teacher sprays air freshener in one corner of the classroom. within a few seconds, students across the room can smell it. which statement best explains this observation? a. the scent particles move slowly and stay close together. b. gas particles move rapidly and spread out to fill the entire space. c. gas particles do not move unless heated. d. the air freshener changes into a solid as it moves

Explanation:

Air freshener is a gas. Gas particles move rapidly and spread out to fill the entire space (kinetic theory of gases). Option A is wrong as gas particles move fast. Option C is incorrect as gas particles move on their own. Option D is wrong as air freshener doesn't change to solid.

Answer:

B. Gas particles move rapidly and spread out to fill the entire space.