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General IGCSE Chemistry > Rates Of Reaction > Flashcards

Flashcards in Rates Of Reaction Deck (6)
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0
Q

Increase in concentration =

A

Increase in rate BECAUSE

• more particles in a given volume that collide more often

1
Q

Factors affecting rate of reaction

A
  • concentration of reactant
  • temperature of reaction
  • surface area of a reactant
  • pressure
2
Q

Increase in temperature

A

Increase in rate BECAUSE

• particles have more energy so more collisions have required activation energy

3
Q

Increase in surface area

A

Increase in rate BECAUSE

• more particles in contact with the other reactant and so they collide more often

4
Q

Increase in pressure

A

Increase in rate in gases BECAUSE

• increase in pressure means that particles hit each other more frequently

5
Q

Dynamic equilibrium has which features?

A
  • rate of forward reaction = rate of backward reaction
  • amounts of reactants and products remain constant
  • any property which depends on amounts of reactants and products remain the same (i.e colour or pressure)