Adding a catalyst

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Abigail Menchaca_1H
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Joined: Sat Sep 07, 2019 12:19 am

Adding a catalyst

Postby Abigail Menchaca_1H » Sun Jan 19, 2020 11:54 pm

How will adding a catalyst change a reaction's equilibrium state?

Chem_Mod
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Re: Adding a catalyst

Postby Chem_Mod » Mon Jan 20, 2020 12:17 am

Adding a catalyst lowers the activation energy of the forward and reverse reaction; however, this is a kinetic property. Equilibrium is a thermodynamic property so it is not affected by the addition of a catalyst. The system may reach equilibrium faster, but the equilibrium composition will be the same.

Naneeta Desar 1K
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Joined: Fri Aug 09, 2019 12:15 am

Re: Adding a catalyst

Postby Naneeta Desar 1K » Mon Jan 20, 2020 12:36 am

In addition, adding a catalyst does not affect the amount of free energy (G) in the reaction.

Natalie Benitez 1E
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Re: Adding a catalyst

Postby Natalie Benitez 1E » Mon Jan 20, 2020 12:20 pm

Does adding a catalyst affect the K since it reaches equilibrium at a faster rate?

805394719
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Joined: Wed Sep 11, 2019 12:16 am

Re: Adding a catalyst

Postby 805394719 » Mon Jan 20, 2020 12:45 pm

Adding a catalyst does not change the equilibrium because it is a kinetic property that favors both the forward and reverse reactions at the same rate and does not change the coefficients. The system may reach equilibrium faster but the equilibrium concentrations will not change. For example, reactions in the body are sped up by catalysts, however, this does not change the concentration of the products or the reactants at equilibrium.

Tiffany_Chen 2K
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Re: Adding a catalyst

Postby Tiffany_Chen 2K » Mon Jan 20, 2020 1:34 pm

In addition, remember that only temperature will change the reaction's equilibrium constant. A catalyst will only speed up the reaction for equilibrium to be reached more quickly.

Angela Wu-2H
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Re: Adding a catalyst

Postby Angela Wu-2H » Mon Jan 20, 2020 4:41 pm

Adding a catalyst will not change the equilibrium concentrations. A catalyst simply speeds things up, so equilibrium will be reached quicker.

Lauren Tanaka 1A
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Re: Adding a catalyst

Postby Lauren Tanaka 1A » Mon Jan 20, 2020 5:58 pm

Adding a catalyst to a chemical equilibrium reaction will not affect the K value since a catalyst will only speed up the reaction so a reaction can occur quicker. It has no effect on the K value.


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