Question

the rapid movement of gases molecules can be explained because gases have __ size particles and exert __ attraction for other gas particles? a small, great b large, great c large, little d small, little

Explanation:

To solve this, we recall the kinetic molecular theory of gases. Gas particles are very small in size, and the intermolecular attraction between gas particles is very little (weak). Let's analyze each option:

• Option A: "small, great" – Intermolecular attraction in gases is not great, so A is wrong.
• Option B: "large, great" – Gas particles are not large, and attraction is not great, so B is wrong.
• Option C: "large, little" – Gas particles are small (not large), so C is wrong.
• Option D: "small, little" – Gas particles have small size, and little (weak) intermolecular attraction, which allows them to move rapidly. This matches the theory.

Answer:

D. small, little