Edexcel IAL Chemistry AS 9.3 Measuring reaction rate
Edexcel IAL Chemistry AS 9.3 Measuring reaction rate
For 1/t use a fixed reaction endpoint; for a graph draw a tangent at the requested time, form a large gradient triangle and attach numerator and time units.
How this is tested
- Calculate relative rate as 1/time and report reciprocal-second units and suitable precision.
- Draw a tangent at zero or a stated time and calculate its gradient from two points.
- Derive rate units from the measured concentration, amount or gas volume divided by time.