How does temperature affect the position of equilibrium if the reaction is exothermic?

Imagine the reaction A + B <-> C+D where the forward reaction is exothermic. If we increase the temperature of the surroundings, the equilibrium is going to shift to the direction that reduces the temperature. Since we know that endothermic reactions take in heat from the surroundings, and so make the surroundings colder, this means that the equilibrium is going to shift to favour the endothermic direction in order to counteract the increase in temperature. That means the reaction will go in the backwards direction and so produce more A+B.Using the same idea, if we decrease the temperature of the surroundings, the equilibrium wants to shift to increase the temperature, so it will shift in the exothermic direction which gives off heat. That means the reaction is going to go forwards, and so produce more C+D.

FA
Answered by Frances A. Chemistry tutor

7441 Views

See similar Chemistry A Level tutors

Related Chemistry A Level answers

All answers ▸

What are the differences between covalent and ionic bonding?


The bond angle in a molecule of ammonia (NH3) is 107 degrees so why, when part of a transition metal complex is the bond angle 109.5 degrees.


What is the trend in the first ionisation energy of the peroid 3 elements from sodium to argon.


How does aromatic electrophilic substitution work?


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