Factors that Affect the Rate of Reaction (Edexcel GCSE Chemistry Combined Science): Flashcards
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12 cards from this deck
What is the rate of reaction?
What is the rate of reaction?
How fast or slow a reaction occurs
5 factors affecting reaction rate
5 factors affecting reaction rate
Temperature, pressure, concentration, surface area, catalyst
What theory explains factors affecting reaction rate?
What theory explains factors affecting reaction rate?
Collision theory
Increasing temperature effect on rate
Increasing temperature effect on rate
Faster particles, more successful collisions, faster rate
Increasing pressure effect (gases)
Increasing pressure effect (gases)
Particles closer, more collisions, faster rate
Increasing concentration effect
Increasing concentration effect
More particles, more collisions, faster reaction
Why surface area matters (solids)
Why surface area matters (solids)
Only surface particles can collide with reactants
Increasing surface area effect
Increasing surface area effect
More exposed particles, more collisions, faster rate
Surface area-to-volume ratio formula
Surface area-to-volume ratio formula
What do catalysts provide in reactions?
What do catalysts provide in reactions?
Alternative reaction pathway
What catalysts lower
What catalysts lower
Activation energy
Catalysts consumed in reaction?
Catalysts consumed in reaction?
No, not consumed