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7 Cards in this Set
- Front
- Back
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increasing surface area
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more particles exposed to other reactant so more frequent successful collisions |
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increasing conc. or increasing pressure of gaseous reactions
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particles closer together so more frequent successful collisions |
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rate =
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change in conc. / time taken
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activation energy
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the minimum energy needed for the reaction to occur
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the higher the temperature...
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the more molecules have sufficient energy to react i.e. have <_ Ea. so more frequent successful collisions
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a catalyst
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speeds up a reaction without being used up
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how does a catalyst work?
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provides an alternative route with a lower Ea. more molecules have sufficient energy to react more frequent successful collisions |
