Please describe how temperature, concentration and the use of a catalyst affects rate of reaction.

For a reaction to be successful two atoms need to collide with a sufficient amount of energy (activation energy). Raising the temperature increases the amount of kinetic energy that the atoms have, which means that there are more successful collisions so the rate of the reaction increases. Increasing the concentration of the solution causes the atoms to be closer together, this in turn also increases the amount of successful collisions, increasing the rate. Using a catalyst, lowers the activation energy required for a successful reaction, therefore using a catalyst also increases the rate.

GS
Answered by Georgie S. Chemistry tutor

2846 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

What is meant by equilibrium


I don't understand why pressure changes the position of equilibrium in a reaction?


A student reacts calcium carbonate with hydrochloric acid. Design an experiement that would allow the student to determine the rate of reaction. Draw the set up.


A metal oxide has a relative formula mass (Mr ) of 81. The formula of this metal oxide is MO. Given that the relative atomic mass (Ar ) of oxygen is 16, what is the metal in the metal oxide?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning