Equilibrium constant

Moderators: Chem_Mod, Chem_Admin

Peter Nguyen 2I
Posts: 61
Joined: Fri Sep 28, 2018 12:29 am

Equilibrium constant

Postby Peter Nguyen 2I » Sat Jan 12, 2019 6:07 pm

Why does adding more products or reactants not affect the equilibrium constant?

Michelle Wang 4I
Posts: 63
Joined: Fri Sep 28, 2018 12:27 am

Re: Equilibrium constant

Postby Michelle Wang 4I » Sat Jan 12, 2019 6:09 pm

The equilibrium constant isn't affected because it is a ratio of the products to reactants. So when you add more products, for example, then more reactants are formed and the ratio remains the same.

Karina Jiayu Xu 4E
Posts: 58
Joined: Fri Sep 28, 2018 12:29 am

Re: Equilibrium constant

Postby Karina Jiayu Xu 4E » Sat Jan 12, 2019 6:49 pm

More reactants yields more products until K reaches its original value again.

305113590
Posts: 66
Joined: Fri Sep 28, 2018 12:28 am

Re: Equilibrium constant

Postby 305113590 » Sat Jan 12, 2019 7:50 pm

What he means is that adding a product/reactant will eventually result in the product to reactant ratio to be the same as the equilibrium constant. This, hence, relates to changes in temperature, concentration, and pressure because these are temporary fluctuations in the reaction. The reaction will adjust to the point where it reaches back to equilibrium.

hazelyang2E
Posts: 57
Joined: Fri Sep 28, 2018 12:23 am

Re: Equilibrium constant

Postby hazelyang2E » Sat Jan 12, 2019 9:08 pm

As the previous answers stated, the equilibrium constant is not affected by the addition of more products or reactants because the reaction will re-adjust to this change to minimize the effect of changes (according to Le Chatelier's Principle). It is important to remember that this is due to the fact that the equilibrium constant represents a ratio of products to reactants so it will hold steady even with the addition of either reactants or products.


Return to “Equilibrium Constants & Calculating Concentrations”

Who is online

Users browsing this forum: No registered users and 2 guests