Chemistry topic 6 IGCSE revision

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8 Terms

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Rate of reaction formula (2)

Amount of product formed / time

amount of reactant used / time

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Rate of reaction of a specific time

gradiant of tangent on graph

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Collision theory

Chemical reaction occur when reacting particles collid with each other with sufficient energy

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activation energy

the minimum amount of energy required for a reaction

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Causes for collision increases

  • concentration

  • pressure

  • surface area

  • temperature

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Causes for activation energy decreases

Catalysts

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Catalyst definition

Increase the rate of reaction without getting used up in the reaction by providing an alternative reaction pathway and lower the activation energy of the reaction

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How many cm³ in a dm³

1000