Collision theory & Reaction rates

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  • Created by: charlotte
  • Created on: 15-04-13 17:14

1. How can percentage error be reduced?

  • Only larger masses can reduce percentage error
  • Use equipment with lower error & use larger masses
  • Use smaller masses & equipment with lower error
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Other questions in this quiz

2. Define 'Activation energy'

  • The minimum energy required for a reaction to occur when particles collide
  • The maximum energy required for a reaction to occur when particles collide
  • Energy created during a reaction where particles collide

3. What factors increase rate of reaction by causing more frequent collisions per unit of time?

  • concentration,pressure and surface area
  • time, concentration and surface area
  • surface area only

4. What is a 'successful' particle collision?

  • collision that exceeds the activation energy
  • collision that doesnt affect reaction rate
  • collision that produces more product

5. What is the definition of a catalyst?

  • Substance that causes an increased yield of product in a reaction.
  • Substance that increases reaction rate, but is chemically unchanged at the end of the reaction
  • Substance that increases reaction rate, but is chemically changed at the end of a reaction

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