Comparing Q and K

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Clara Cho 2K
Posts: 103
Joined: Wed Sep 18, 2019 12:18 am

Comparing Q and K

Postby Clara Cho 2K » Wed Jan 08, 2020 11:33 am

When does the reaction favor the products and when does it favor the reactants?

Michael Nguyen 1E
Posts: 120
Joined: Sat Aug 17, 2019 12:17 am

Re: Comparing Q and K

Postby Michael Nguyen 1E » Wed Jan 08, 2020 11:58 am

When Q<K, the reaction will proceed in the forward direction and favor the products.
When Q>K, the reaction will proceed in the reverse direction and favor the reactants.

Joseph Saba
Posts: 154
Joined: Thu Jul 11, 2019 12:16 am

Re: Comparing Q and K

Postby Joseph Saba » Wed Jan 08, 2020 12:17 pm

Q is also calculated the same exact way as the K value would be calculated. The only difference is that it's not at equilibrium.

Connor Chappell 2B
Posts: 59
Joined: Wed Feb 20, 2019 12:16 am

Re: Comparing Q and K

Postby Connor Chappell 2B » Wed Jan 08, 2020 12:26 pm

A way to think about Q is a checkpoint to check where the reaction is at in the process of nearing equilibrium. (i.e. if Q<K, there is still more reactant that is being reacted to form the product. if Q>K, there is more product than the reactant would produce at equilibrium and thus, the reaction will favor the production of the reactants.) If Q=K, then the reaction is at equilibrium.

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