Chemistry A-Level
concentration changes
What concentration changes means in Chemistry A-Level, as defined for AQA.
Definition of concentration changes
Check what you remember
Read the wording for your board, then hide it and explain concentration changes in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Increasing the concentration of a reactant shifts the equilibrium to the right, and removing a product does the same.
Topics that use concentration changes
- Chemical equilibria and Le Chatelier's principle (AQA A-Level)
Related terms
- closed system
- compromise pressure
- compromise temperature
- constant concentrations
- dynamic equilibrium
- equal effect on both directions
- equal forward and reverse rates
- Equilibrium constant Kc
Using concentration 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.
Start free
All Chemistry A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge