9443374
Description
Mind Map by Niamh Ryan, updated more than 1 year ago
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Created by Niamh Ryan
almost 7 years ago
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Rate of Reaction Factors Mind Map
- Temperature
- Increasing the temperature increases the rate of
reaction
- Particles have more energy, so move faster and are more likely to
collide
- Higher collision frequency means a higher rate of
reaction
- Higher collision frequency means a higher rate of
reaction
- Particles have more energy, so move faster and are more likely to
collide
- Increasing the temperature increases the rate of
reaction
- Concentration
- Increasing concentration
increases the rate of reaction
- More reactants in reaction
vessel means successful
collisions are more likely
- More reactants in reaction
vessel means successful
collisions are more likely
- Increasing concentration
increases the rate of reaction
- Pressure
- Changes in pressure have no effect on
reactions that involve solids and liquids
- Increasing pressure increases the rate of
reaction for reactions involving gases
- Reactant particles are squeezed closer together so collision frequency
increases
- Reactant particles are squeezed closer together so collision frequency
increases
- Changes in pressure have no effect on
reactions that involve solids and liquids
- Catalysts
- Substances that change the rate of
reaction but remain chemically
unchanged at the end of the reaction
- Catalysts provide a surface on which
the reacting molecules can collide
- Reduces the amount of energy
required for a successful collision
- Many particles will have more energy than
this lower threshold, and so the collision
frequency and rate of reaction will increase
- Many particles will have more energy than
this lower threshold, and so the collision
frequency and rate of reaction will increase
- Reduces the amount of energy
required for a successful collision
- Substances that change the rate of
reaction but remain chemically
unchanged at the end of the reaction
- Surface area
- Increasing the surface area to volume
ratio of the reactants increases the rate
of reaction
- When one of the reactants is in a
large lump, the other reactant cannot
react with the particles in the middle
- Smaller particle size leads to higher surface
are and an increase in the collision
frequency
- Smaller particle size leads to higher surface
are and an increase in the collision
frequency
- When one of the reactants is in a
large lump, the other reactant cannot
react with the particles in the middle
- Increasing the surface area to volume
ratio of the reactants increases the rate
of reaction
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