Effect of Concentration on Rate

• What is the key idea in chemistry that explains the rate of chemical reactions?

  Collision Theory
• What does collision theory state about chemical reactions?

  Chemical reactions occur when reacting particles collide with sufficient energy.
• How does the frequency of successful collisions affect the rate of a chemical reaction?

  The rate of a chemical reaction is determined by the frequency of successful collisions.
• What happens to the rate of a chemical reaction over time?

  • Reactions are rapid initially
  • Reactions slow down over time
  • Reactions eventually stop
• Why do reactions slow down over time according to collision theory?

  Reactions slow down due to a decrease in the number of reactant molecules.
• What happens when all reactant molecules have run out?

  All reactions stop.
• How does the concentration of reactants affect the rate of reaction?

  • Higher concentration leads to more collisions per second
  • Rate of reaction increases with concentration
  • Rate is proportional to concentration
• If one container has twice the number of reactant particles as another, how does this affect the rate of reaction?

  The rate of reaction will be twice as fast.
• How does the pressure of a gas affect the rate of reaction?

  Higher gas pressure increases the rate of reaction.
• What can be inferred about the relationship between concentration and the quantity of product formed?

  • Higher concentration leads to a faster reaction
  • More product is formed at the end
  • The line representing higher concentration is steeper
• What will be covered in the next video related to concentration and reaction rates?

  Investigating the effect of concentration on the rate of reaction.
• What type of questions can be expected in the vision workbook regarding this topic?

  Questions on the effect of concentration on the rate of reaction.