Why does alcohol evaporate quickly?
Show answer & explanation
Answer: Weak bonds between molecules
Alcohol is very hot — Wrong. Alcohol at room temperature isn't hot. It evaporates quickly due to molecular properties.
Weak bonds between molecules ✓ — Correct! Alcohol molecules have weaker attractions to each other than water molecules do. Less energy is needed for molecules to escape into the air. That's why alcohol feels cold on skin—it evaporates fast, taking heat with it!
Alcohol weighs very little — Wrong. Molecular weight isn't the main factor. The weak intermolecular bonds allow easy evaporation.
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