Chemistry A-Level
Calculating Kc from equilibrium concentrations
What Calculating Kc from equilibrium concentrations means in Chemistry A-Level, as defined for OCR.
Definition of Calculating Kc from equilibrium concentrations
Check what you remember
Read the wording for your board, then hide it and explain Calculating Kc from equilibrium concentrations in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Substitute the supplied equilibrium concentrations into the expression, keeping units consistent in mol dm⁻³, then evaluate and derive the units of Kc from the powers.
Topics that use Calculating Kc from equilibrium concentrations
- Chemical equilibrium (OCR A-Level)
Related terms
- closed system
- constant concentrations
- Controlling variables in equilibrium experiments
- dynamic equilibrium
- Dynamic equilibrium and equal forward and reverse rates
- Dynamic equilibrium in closed systems
- Effect of concentration change on equilibrium position
- Effect of temperature change on equilibrium position
Using Calculating Kc from equilibrium concentrations 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