F325 - Rates
Mindmap of Edexcel Chemistry A2 - F325
- Created by: tmiti
- Created on: 23-03-14 14:25
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- Rates
- Increasing concentration = More frequent collisions = Increased Rate
- Concentration Time Graphs
- A straight horizontal line is Zero Order
- Upward sloping curve is 2nd Order
- Concentration Time Graphs
- Interpreting Graphs
- the steeper the curve, the faster the rate
- reactions slow down with time
- Concentration of Reactants decreases as Concentration of Products increases
- Rate of Change is the gradient of the curve
- The gradient at the start is initial rate
- Rate Determining Step
- The slowest step is the rate determining step
- To make more profit, increase the [] of substance in the slow step
- The reactants used in the 1st step of a mecahnism are the only ones used in the rate equation
- The slowest step is the rate determining step
- moldm-3/s-1
- Increasing concentration = More frequent collisions = Increased Rate
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