C2, Chemistry, Rates of reaction

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  • Created by: emmajane_
  • Created on: 16-03-14 15:23
Name two ways rates of reaction can be measured
1. The rate at which a reactant is used up 2. The rate at which products are formed
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Name 5 factors that can affect the rate of reaction
temperatyre, concentration, pressure of reacting gasses, surface area of reacting solids and the use of catalyst
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Name 5 ways to speed up the rate of reaction
Increase preddure of reacting gas, break solid reactants down in to smaller pieces, use a catalyst, increase temperature and increase concentration
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COLLISIONS AND REACTIONS- How does increasing the concentration or pressure increase the rate of reaction? Name 2 ways
More reactant particles in the same volume, greater chance of particles colliding
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COLLISIONS AND REACTIONS- How does increasing the particle size increase the rate of reaction? Name 3 ways
SUrface area is increased, more particles exposed to other reactants, greater change of particle colliding
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COLLISIONS AND REACTIONS- What is activation energy?
The minimum energy needed for particles to react
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COLLISIONS AND REACTIONS- How does increasing the temperature increase the rate of reaction? Name 2 ways
More particles have activation energy and reactant particles move more quickly
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Why are catalysts important in industry?
To reduce costs
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What do catalysts do to the rate of reaction and how do they do it?
Increase rates of reaction without being used up , do this by lowering activation energy
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What is the purpose of a catalyst?
To increase the rate of reaction- It causes more collisions
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COLLISIONS AND REACTIONS- What needs to happen for a reaction to occur?
Reactants need to collide
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Card 2

Front

Name 5 factors that can affect the rate of reaction

Back

temperatyre, concentration, pressure of reacting gasses, surface area of reacting solids and the use of catalyst

Card 3

Front

Name 5 ways to speed up the rate of reaction

Back

Preview of the front of card 3

Card 4

Front

COLLISIONS AND REACTIONS- How does increasing the concentration or pressure increase the rate of reaction? Name 2 ways

Back

Preview of the front of card 4

Card 5

Front

COLLISIONS AND REACTIONS- How does increasing the particle size increase the rate of reaction? Name 3 ways

Back

Preview of the front of card 5
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