Le Chatlier Principle

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Shirley Liu 2I
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Joined: Fri Sep 28, 2018 12:16 am

Le Chatlier Principle

Postby Shirley Liu 2I » Sun Mar 17, 2019 5:48 pm

If a reaction is already in equilibrium what will occur if a catalyst is added to the system? Will the reaction proceed forward or reverse or not at all?

Shivangi_2J
Posts: 65
Joined: Fri Sep 28, 2018 12:15 am

Re: Le Chatlier Principle

Postby Shivangi_2J » Sun Mar 17, 2019 5:52 pm

I think because a catalyst speeds up the forward and back reaction to the same extent, adding a catalyst does not affect the relative rates of the two reactions

KimGiang2F
Posts: 31
Joined: Fri Sep 28, 2018 12:19 am

Re: Le Chatlier Principle

Postby KimGiang2F » Sun Mar 17, 2019 5:54 pm

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.

Luis_Yepez_1F
Posts: 50
Joined: Fri Sep 28, 2018 12:18 am

Re: Le Chatlier Principle

Postby Luis_Yepez_1F » Sun Mar 17, 2019 9:21 pm

Addin a catalyst wouldn't affect the equilibrium, rather it would just speed up the forward and reverse reaction.

904837647
Posts: 67
Joined: Tue May 01, 2018 3:00 am

Re: Le Chatlier Principle

Postby 904837647 » Sun Mar 17, 2019 9:36 pm

A catalyst only affects the reaction rate. Products, reactants, equilibrium constants etc would not change.

Chris Dis3L
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Joined: Fri Sep 28, 2018 12:25 am

Re: Le Chatlier Principle

Postby Chris Dis3L » Sun Mar 17, 2019 11:06 pm

The catalyst does not interfere with the reaction at equilibrium. It merely speeds up the rate of the forward and reverse reactions.

Casandra
Posts: 65
Joined: Fri Sep 28, 2018 12:17 am

Re: Le Chatlier Principle

Postby Casandra » Sun Mar 17, 2019 11:14 pm

adding a catalyst has no effect on the equilibrium, it just speeds up reaction.

505211599
Posts: 60
Joined: Fri Sep 28, 2018 12:28 am

Re: Le Chatlier Principle

Postby 505211599 » Sun Mar 17, 2019 11:57 pm

Adding a catalysts has no effect on the product or reactant, only speeds up the rate of reaction

Ryan Yee 1J
Posts: 101
Joined: Sat Aug 17, 2019 12:16 am

Re: Le Chatlier Principle

Postby Ryan Yee 1J » Thu Jan 09, 2020 7:23 pm

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.

kausalya_1k
Posts: 50
Joined: Wed Nov 14, 2018 12:23 am

Re: Le Chatlier Principle

Postby kausalya_1k » Sat Jan 11, 2020 9:56 am

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.

Rebekah Alfred 1J
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Re: Le Chatlier Principle

Postby Rebekah Alfred 1J » Sat Jan 11, 2020 11:39 am

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/


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