Temperature-

• The greater the frequency of successful collisions, the greater the rate of reaction
• If the temperature of the reaction mixture is increased:
• Reactant particles move more quickly
• The energy of the particles increases
• The frequency of successful collisions between reactant particles increases
• Therefore, the rate of reaction increases
• Note that the mean energy of the collisions changes when the temperature changes:
• The frequency of collisions increases
• The proportion of collisions that are successful also increases