Question

Abstract on temperature and reaction rate chemical

Answer 1

Increasing the temperatureincreases reaction rates because of the disproportionately large increase in the number of high energy collisions. It is only these collisions (possessing at least the activation energy for the reaction) which result in a reaction.



Collisions only result in a reaction if the particles collide with a certain minimum energy called the activation energy for the reaction. ... A catalystprovides an alternative route for the reaction with a lower activation energy. It does not "lower the activation energy of the reaction".