Energy changes during state changes
What Energy changes during state changes means in Chemistry GCSE, as defined for AQA.
Definition of Energy changes during state changes
Check what you remember
Read the wording for your board, then hide it and explain Energy changes during state changes in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Only a small amount of energy is needed to separate the molecules from one another when a substance melts or boils.
Topics that use Energy changes during state changes
- Properties of small molecules (AQA GCSE)
Related terms
- Bulk properties
- Covalent bonding
- Covalent bonds
- Covalent bonds remain intact
- Energy transfer during state changes
- Intermolecular forces
- Melting and boiling points
- Overcoming intermolecular forces
Using Energy changes during state changes in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Chemistry questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge