Rate of reaction

Cards (6)

  • The rate of reaction is defined as the the change on concentration of a reactant or pdouct per unit of time.
  • Collision theory states that a reaction owuld occur when particles collide with sufficient energy and in the correct orentiation. This is known as activation energy and when the energy is absorbed they undergo a transition state which is the maximum potential energy of the reaction.
  • The rate of reaction increases as the frequency of collisions increases, this is achieved through increasing
    1. Surface area
    2. Pressure
    3. concentration
    4. Temperature
  • Maxwell-Boltzmen states that the particles in a substance have a range of kinect energy during a reaction, this is indicated with the shaded area under the graph
  • Catalyst is a substance that speeds up the reaction by providing an alternative energy pathway that lowers the activation energy
  • Homogenous state is when the reactants and products are in the same state, while hetergenous is when they are not