Rates and Equilibrium - Simple Collision Theory and Catalysts

In specification, 2.3.2 (a)-(e)

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  • Simple Collision Theory
    • When the pressure of a gas is increased, the molecules are pushed closer together.
      • The same number of molecules occupy a smaller volume.
        • For a gaseous reaction, increasing the pressure is the same as increasing the concentration
    • When the concentration of reactants is increased, the rate of reaction also increases.
      • Increased concentration gives more molecules, in the same volume.
        • Molecules will be closer together and there is a greater chance of the molecules colliding.
          • Collisions will be more frequent.
  • Collisions will be more frequent.


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