A substance can exist in three different states: solid, liquid or gas. Each of the two…
Physics · IGCSE · Cambridge (CIE) — Thermal physics
A substance can exist in three different states: solid, liquid or gas.
Each of the two statements below describes a change of state.
Change 1: Particles move much closer together but continue to travel throughout the substance.
Change 2: Particles stop travelling throughout the substance and just vibrate about fixed positions.
Which changes of state do these statements describe?
change 1 | change 2 | |
A | condensation | melting |
B | condensation | solidification |
C | solidification | condensation |
D | solidification | melting |
A
B
C
D
Answer
(B) B
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