Chemistry Chapter 14 in ReviseWise
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ACTIVATION ENERGY | The minimum energy required in which particles need to collide to cause a reaction
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RATE OF A CHEMICAL REACTION | The change in concentration in unite time of any one reactant
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INSTANTANEOUS RATE OF REACTION | Rate at a particular point in time during the reaction
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CATALYST | A substance that alters the rate of a chemical reaction but is not consumed in the reaction
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HETEROGENEOUS CATALYST | Catalyst in a different phase to the reactants (also happens at the surface- adsorption)
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HOMOGENEOUS CATALYST | Catalyst in the same phase to the reactants
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FACTORS AFFECTING REACTION RATES | Concentration
Temperature
Catalyst
Nature- Ionic or Covalent
Particle Size
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ENZYMES | Catalyse in livers- homogeneous catalyst
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AUTOCATALYSIS | Occurs when the product of reaction increases the react of the reaction
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CATALYTIC CONVERTER | Reduces Emissions of gases
Transition Metals- Platinum & Palladium
Heterogeneous- Catalyst is solid, whilst reactant is gaseous
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