11 posts • Page 1 of 1
Even though a system is at equilibrium, the reaction does not stop. Instead, it continues just as fast in the direction from reactants to products (the forward direction), as it does from products to reactants (the reverse direction). The addition of a catalyst speeds up the forward and back reaction to the same extent. Therefore, adding a catalyst does not affect the relative rates of the two reactions, it cannot affect the position of equilibrium.
Adding a catalyst, in this case, would do nothing because the reaction is already at equilibrium. Catalysts only serve to increase the rate of reaction so if the reaction was not at equilibrium then it would just achieve equilibrium quicker than an uncatalyzed reaction.
Adding a catalyst will speed up both the forward and reverse reaction rates. However, as long as both the forward and reverse reaction rates are still equal to each other, then the reaction is still at equilibrium.
This website has a section called "The Effect of a Catalyst on Equilibrium" that might help you understand more thoroughly what happens if a catalyst is added: https://courses.lumenlearning.com/boundless-chemistry/chapter/factors-that-affect-chemical-equilibrium/
Who is online
Users browsing this forum: No registered users and 1 guest