A substance may be found in three states: solid, liquid or gas. Each of the two statements below gives a description of a change of state. change 1: Molecules get nearer to each other but still move through the substance. change 2: Molecules no longer move through the substance and only vibrate around fixed positions. Which changes of state are described by these statements?
- Achange 1: condensation; change 2: melting
- Bchange 1: condensation; change 2: solidification
- Cchange 1: solidification; change 2: condensation
- Dchange 1: solidification; change 2: melting