Chemistry A-Level
First order: constant half-life
What First order: constant half-life means in Chemistry A-Level, as defined for OCR.
Definition of First order: constant half-life
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Reference: OCR
The concentration falls exponentially, giving a curve whose gradient decreases steadily, and each successive halving of concentration takes the same time.
Topics that use First order: constant half-life
- 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 First order: constant half-life in the exam
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