Chemistry A-Level
Equilibrium constant
What Equilibrium constant means in Chemistry A-Level, as defined for OCR.
Definition of Equilibrium constant
Check what you remember
Read the wording for your board, then hide it and explain Equilibrium constant in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Expresses the ratio of products to reactants at equilibrium, and the system adjusts the position of equilibrium so that this ratio is restored whenever it is disturbed.
Topics that use Equilibrium constant
- How far? (OCR A-Level)
Related terms
- Constant temperature and constant titre
- Conversion between moles, concentration and partial pressure
- Determination of units by unit cancellation
- Effect of temperature on equilibrium position
- Equilibrium constant expressions for Kc and Kp
- Equilibrium constant Kc
- Equilibrium expressions from balanced equations
- Exothermic and endothermic forward reactions
Using Equilibrium constant 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