Melting and boiling points
What Melting and boiling points means in Combined Science GCSE, as defined for AQA.
Definitions of Melting and boiling points
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Reference: AQA
Relatively low for small-molecule substances because melting and boiling involve overcoming weak intermolecular forces rather than breaking strong covalent bonds.
The temperatures at which changes of state occur, which are low in a simple molecular substance because weak intermolecular forces are overcome.
Low for molecular substances because little energy is needed to overcome the weak intermolecular forces rather than the covalent bonds.
Topics that use Melting and boiling points
- Properties of small molecules (AQA GCSE)
- The three states of matter (AQA GCSE)
Related terms
- Energy and changes of state
- Intermolecular forces
- States of matter
- Boiling point
- Bonding and structure
- Changes of state
- Changes of state and energy transfer
- Comparing temperature with fixed points
Using Melting and boiling points in the exam
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