Ace KS3 Physics 2025 – Unleash Your Inner Einstein and Conquer the Test!

Question: 1 / 400

What is the term for a change of state from liquid to gas?

Condensation

Melting

Evaporation

The term for a change of state from liquid to gas is evaporation. This process occurs when liquid molecules gain enough energy to overcome the forces of attraction that hold them together, allowing them to enter the gas phase. This typically happens at the surface of the liquid, where molecules can escape into the air as gas. Evaporation can occur at all temperatures, not just at the boiling point, which differentiates it from boiling.

In contrast, condensation is the process of a gas turning back into a liquid. Melting refers to the transition from a solid to a liquid, and freezing is the process where a liquid changes into a solid. Understanding these terms is essential in grasping the different physical changes that substances can undergo.

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Freezing

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