Question

When a gas is cooled down, what happens to the molecules?
A. The molecules slow down and become more dense
B. The molecules slow down and become less dense
C. The molecules move faster and become less dense
D. The molecules move faster and become more dense

Answer 1

Explanation:

If a gas is cooled, its particles will eventually stop moving about so fast and form a liquid. This is called condensation and occurs at the same temperature as boiling. Hence, the boiling point and condensation point of a substance are the same temperature.

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