Chemistry reaction rates

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  • Reactions
    • Collision theory
      • To react the molecules have to collide in the right place with the right activation energy.
      • Temperature
        • The greater the temperature the faster the reaction
        • If reaction includes enzymes  temperatures too high will cause the enzymes to denature and not react.
    • Speeding up reactions
      • Temperature
        • The greater the temperature the faster the reaction
        • If reaction includes enzymes  temperatures too high will cause the enzymes to denature and not react.
      • catalysts
        • Help products to react but do not react with the products themselves
      • Concentration
        • The greater the concentration the faster the reaction
        • A high pressure also causes a faster reaction rate as if the particles are close together they are more likely to collide and react together.
      • pH
        • Depending on the pH the products are used to the faster the reaction.
      • Surface Area
        • The larger the surface area the faster the reaction as more of the substance will be able to react.
    • Rate of Reaction
      • Amount of reactant used/time
      • Amount of product formed/time

Comments

Becca Shan

Its a little simple but it gives all the key facts, would recommend for a visual aid when revising :)

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