Factors that Affect the Rate of Reaction (AQA GCSE Chemistry Combined Science): Flashcards
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14 cards from this deck
Term for reaction speed
Term for reaction speed
Rate of reaction
3 main rate factors
3 main rate factors
Temperature, pressure, concentration
2 additional rate factors
2 additional rate factors
Surface area, catalyst
Theory explaining rates
Theory explaining rates
Collision theory
Why ↑ temp speeds rate
Why ↑ temp speeds rate
Faster particles, more energetic collisions
Why ↓ temp slows rate
Why ↓ temp slows rate
Slower particles, fewer collisions
Why ↑ pressure speeds rate (gas)
Why ↑ pressure speeds rate (gas)
Particles closer, more frequent collisions
Why ↑ concentration speeds rate
Why ↑ concentration speeds rate
More particles, more collisions
Why only surface matters (solids)
Why only surface matters (solids)
Only surface particles can collide
Why ↑ surface area speeds rate
Why ↑ surface area speeds rate
More exposed particles for collisions
Effect of higher SA:V ratio
Effect of higher SA:V ratio
Faster reaction rate
SA:V ratio formula
SA:V ratio formula
How catalysts work
How catalysts work
Lower activation energy pathway
Are catalysts consumed?
Are catalysts consumed?
No, not consumed