Reaction Rates

• What are the two factors of collision theory?

  Reactants must collide with correct orientation and have sufficient activation energy.
• What is reaction rate?

  The speed of which products are formed, to increase a reaction add energy, manipulate activation energy or increase number of successful collisions.
• How does concentration affect reaction rate?

  If conc. is increased there is greater chance of reactants colliding, therefore a higher chance of successful collisions.
• How does pressure affect reaction rate?

  If increased the conc. of particles is increased and hence there are more successful collisions and a faster rate or reaction.
• How does surface area affect reaction rate?

  If the SA is increased the number of successful collisions increase.
• How does temperature affect reaction rate?

  Temp. increases so does energy therefore number of collisions.
• How do catalysts affect reaction rate?

  Lower activation energy, increasing reaction rate, an alternative reaction pathway.