Factors Affecting Reaction Rates

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  • Created by: sara.5
  • Created on: 06-04-18 19:46
What is Activational Energy?
The minimum amount of energy needed for a reaction to start
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Which reaction continuously need energy?
Endothermic
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What about Exothermic reactions?
They need to be giving energy once to start reactions but they continue to occur because they give out out energy which provides activational energy for other particle
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How does concentration affect rate of reaction?
Increasing concentration increases number of particles in a particular volume therefore more particles are reacting in the same volume so more collision occur
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How does surface area affect rate of reaction?
If the surface area of a reactant is increased: More particles are exposed to the other reactant. so more collision occur rate of reaction is faster
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How does pressure of gas affect rate of reaction?
Increasing pressure of gases increases rate of reaction.Reactant particles are squeezed closer together so collision occur more often
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How does temperature affect rate of reaction?
Increasing temperature increase rate of reaction.Reactant particles speed up and have more energy. Therefore collide more often and more particles have enough energy to react when they collide
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Other cards in this set

Card 2

Front

Which reaction continuously need energy?

Back

Endothermic

Card 3

Front

What about Exothermic reactions?

Back

Preview of the front of card 3

Card 4

Front

How does concentration affect rate of reaction?

Back

Preview of the front of card 4

Card 5

Front

How does surface area affect rate of reaction?

Back

Preview of the front of card 5
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