Collision theory

• What does collision theory state?

  For a chemical reaction to take place the particles need to collide with each other in the correct orientation with enough energy
• What are the different types of collision theory

  • Orientation
  • Energy
  • Chemical reaction
• What are the effective and ineffective collision of orientation?

  Correct orientation and wrong orientation
• what are the effective and ineffective collision for energy?

  enough energy and not enough energy
• What are the effective and ineffective collision for chemical reaction?

  yes and no
• What is an ineffective collision?

  particles collide in the wrong orientation or when they don’t have enough energy and bounce off each other without causing a chemical reaction
• Which reaction has a successful collision?

  B

  
• What is collision frequency?

  the number of collision per unit time
• when more collision per unit time take place what happens to the particles energy?

  energy is greater than the activation energy increases
• When there are more collisions over unit time take place what happens to the rate of reaction?

  It increases
• What do the particles need to overcome for a reaction to take place?

  minimum amount of energy
• in Exothermic reactions are products or reactants higher in energy?

  reactants
• in endothermic reactions are reactants or products lower in energy?

  reactants
• what is the size of the activation energy increase endothermic reactions?

  higher than Exothermic reactions
• What type of reaction is this?

  Exothermic

  
• What type of reaction is this?

  Endothermic

  
• what do particles have to do for a reaction to take place?

  • collide with each other in the same orientation
  • have a minimum energy that corresponds to the activation energy of that reaction
• what is a catalyst?

  a substance that increases the rate of reaction without taking part in the chemical reaction by providing the particles an alternative mechanism with a lower activation energy