Catalysts in Kc

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Henry_Phan_4L
Posts: 68
Joined: Fri Sep 28, 2018 12:24 am

Catalysts in Kc

Postby Henry_Phan_4L » Sun Jan 27, 2019 5:52 pm

Why doesn't a catalyst affect the equilibrium constant?

Lauryn Shinno 2H
Posts: 59
Joined: Fri Sep 28, 2018 12:24 am

Re: Catalysts in Kc

Postby Lauryn Shinno 2H » Sun Jan 27, 2019 5:55 pm

Catalysts don't affect Kc because they only make reactions faster. They don't change the concentrations of the reactants or products.

Yvonne Du
Posts: 64
Joined: Fri Sep 28, 2018 12:23 am

Re: Catalysts in Kc

Postby Yvonne Du » Sun Jan 27, 2019 6:07 pm

They speed up the process but do not change the concentrations.

Sheridan Slaterbeck 1J
Posts: 62
Joined: Fri Sep 28, 2018 12:27 am

Re: Catalysts in Kc

Postby Sheridan Slaterbeck 1J » Sun Jan 27, 2019 6:08 pm

Catalysts change the speed at which the reaction occurs, not the components.

Isabelle Fontanilla 1I
Posts: 60
Joined: Fri Sep 28, 2018 12:19 am

Re: Catalysts in Kc

Postby Isabelle Fontanilla 1I » Sun Jan 27, 2019 8:12 pm

Adding catalysts does not change the equilibrium because all it does is speed up the rate at which the system reaches equilibrium by lowering the activation energy required to proceed with the reaction(forward reaction rate and reverse reaction rate are changed equally).
Also, catalysts do not change the equilibrium constant because their concentrations remain the same from the beginning to the end of the reaction(they get used up and replaced automatically).

Jaqueline Monreal 2L
Posts: 57
Joined: Fri Sep 28, 2018 12:28 am

Re: Catalysts in Kc

Postby Jaqueline Monreal 2L » Sun Jan 27, 2019 9:03 pm

catalysts only change how fast a reaction is performed but doesnt change any of the concentrations

RachelCheung1A
Posts: 30
Joined: Fri Sep 28, 2018 12:19 am

Re: Catalysts in Kc

Postby RachelCheung1A » Sun Jan 27, 2019 9:15 pm

They increase the rate of the reaction but does not cause any permanent chemical change in the reaction, so the concentrations are the same and equilibrium is the same


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