What does K represent?


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abbydouglas1K
Posts: 65
Joined: Fri Sep 28, 2018 12:26 am

What does K represent?

Postby abbydouglas1K » Fri Jan 11, 2019 9:21 am

I know how to find K but what does it mean ?

Chris Freking 2G
Posts: 60
Joined: Fri Sep 28, 2018 12:29 am

Re: What does K represent?

Postby Chris Freking 2G » Fri Jan 11, 2019 9:29 am

K is the equilibrium constant, which is derived from dividing the concentration of product by the concentration of reactant. (K=[P]/[R]). When a reaction is at equilibrium, products and reactants are being formed at equal rates, so the concentration of either remains constant.

JulieAljamal1E
Posts: 71
Joined: Fri Sep 28, 2018 12:24 am

Re: What does K represent?

Postby JulieAljamal1E » Fri Jan 11, 2019 9:31 am

K is the equilibrium constant. It represents the concentration of products at equilibrium over the concentration of reactants at equilibrium. At equilibrium the reaction is still occuring and products and reactants are still being formed/ the forward and reverse reactions are stil occuring but at equal rates.

Noah Cook 3O
Posts: 31
Joined: Fri Sep 28, 2018 12:20 am

Re: What does K represent?

Postby Noah Cook 3O » Fri Jan 11, 2019 9:32 am

K represents the ratio of products to reactants when the reaction is at equilibrium. Basically, if you were to let the reaction go (till equilibrium), how much of the products do you have compared to the reactants. Note that equilibrium does not mean the products and reactants are equal, but rather that the reaction has reached a state where it will no longer change the quantities of products and reactants.

Zubair Ahmed 1L
Posts: 81
Joined: Fri Sep 28, 2018 12:16 am

Re: What does K represent?

Postby Zubair Ahmed 1L » Fri Jan 11, 2019 9:54 am

K represents the equilibrium constant which is denoted by the concentration of products over the concentration of the reactant. If both of the concentrations are the same, the K value would be one.

Danny Zhang 4L
Posts: 62
Joined: Fri Sep 28, 2018 12:26 am

Re: What does K represent?

Postby Danny Zhang 4L » Fri Jan 11, 2019 1:33 pm

K is the equilibrium constant. It represents the ratio of the concentration of products to the concentration of reactants in a reaction that tells us when the rate of forward reaction and the rate of reverse reaction are equal.

Madeline Motamedi 4I
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am

Re: What does K represent?

Postby Madeline Motamedi 4I » Fri Jan 11, 2019 2:22 pm

Keep in mind that once you find K, the amounts of the products and reactants can vary although the ratios of the concentrations of reactants and products will stay the same for a certain reaction.

LeannaPhan14BDis1D
Posts: 57
Joined: Fri Sep 28, 2018 12:16 am

Re: What does K represent?

Postby LeannaPhan14BDis1D » Fri Jan 11, 2019 3:14 pm

K is a constant but it is supposed to stay the same regardless of the different P/R right?

Jocelyne Milke 1G
Posts: 73
Joined: Fri Sep 28, 2018 12:25 am

Re: What does K represent?

Postby Jocelyne Milke 1G » Fri Jan 11, 2019 3:22 pm

LeannaPhan14BDis1D wrote:K is a constant but it is supposed to stay the same regardless of the different P/R right?

Yes! I believe changing the concentrations of the reactants or products does not change K

Raj_Bains_2C
Posts: 66
Joined: Fri Sep 28, 2018 12:25 am
Been upvoted: 1 time

Re: What does K represent?

Postby Raj_Bains_2C » Fri Jan 11, 2019 4:18 pm

K is the ratio of the concentrations or partial pressures of the products to reactants at equilibrium. It is a way to tell is a reaction is at equilibrium and it helps us know what needs to happen to take the reaction to equilibrium.


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