Chemistry A-Level
London forces and chain length
What London forces and chain length means in Chemistry A-Level, as defined for AQA.
Definition of London forces and chain length
Check what you remember
Read the wording for your board, then hide it and explain London forces and chain length in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Long chain molecules have more electrons and a greater surface area of contact, so their London forces are stronger and their boiling points higher.
Topics that use London forces and chain length
- Fractional distillation of crude oil (AQA A-Level)
Related terms
Using London forces and chain length 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.
Start free
All Chemistry A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge