Chemistry A-Level
Initial rate method
What Initial rate method means in Chemistry A-Level, as defined for OCR.
Definition of Initial rate method
Check what you remember
Read the wording for your board, then hide it and explain Initial rate method in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
A method that measures how fast a reaction is at the very start, before concentrations have changed appreciably.
Topics that use Initial rate method
- Use of apparatus and techniques (OCR A-Level)
Related terms
- Calculating and interpreting the titre
- Cation tests with sodium hydroxide
- Clock reaction
- Collecting data over time to determine rate
- Condenser water flow and safety
- Continuous monitoring method
- Controlling variables to isolate concentration effects
- Correct reading technique for scales
Using Initial rate method 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