Chemistry A-Level
Rate equation and order of reaction
What Rate equation and order of reaction means in Chemistry A-Level, as defined for OCR.
Definition of Rate equation and order of reaction
Check what you remember
Read the wording for your board, then hide it and explain Rate equation and order of reaction in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
For a first order reaction the rate equation is rate = k[A], and a straight line through the origin confirms first order behaviour with respect to that reactant.
Topics that use Rate equation and order of reaction
- How fast? (OCR A-Level)
Related terms
- Calculating rate and concentration from the rate equation
- Colorimetry
- Concentration–time graphs
- Constant half-life
- continuous monitoring
- Controlled comparison of experiments
- Deducing order from initial-rate data
- Deducing order with respect to a reactant
Using Rate equation and order of reaction 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