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Chemistry Chapter 14 in ReviseWise

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Question
Answer
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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