Catalyst


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Ashley Lopez 3J
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Catalyst

Postby Ashley Lopez 3J » Sat Mar 13, 2021 11:18 pm

Can someone please explain why adding a catalyst increases the reverse reaction? I thought that it would decrease when looking at the graph, but I'm just reading it wrong.

Chanel Mao 3D
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Re: Catalyst

Postby Chanel Mao 3D » Sat Mar 13, 2021 11:20 pm

It increases the speed of both reactions because it lowers the activation energy. Therefore the reverse reaction would also have a lower activation energy and therefore take place at a faster speed.

Isabelle Hales 1J
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Re: Catalyst

Postby Isabelle Hales 1J » Sat Mar 13, 2021 11:30 pm

Going off of this, will the catalyst have the same effect on both the forward and reverse reactions? In other words, is the increase in speed because of the catalyst the same for both reactions? Thanks!

Eric Cruz 2G
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Re: Catalyst

Postby Eric Cruz 2G » Sun Mar 14, 2021 12:48 am

catalysts increase the speed of the reaction rate but decrease the activation energy. This holds true for both the forward and reverse

Sarah Hernandez 1F
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Re: Catalyst

Postby Sarah Hernandez 1F » Sun Mar 14, 2021 12:55 am

Isabelle Hales 1J wrote:Going off of this, will the catalyst have the same effect on both the forward and reverse reactions? In other words, is the increase in speed because of the catalyst the same for both reactions? Thanks!

yes I believe the increase in speed is the same for both the forward and reverse reactions

Rose_Malki_3G
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Re: Catalyst

Postby Rose_Malki_3G » Sun Mar 14, 2021 1:00 am

It is changing the pathway for both the forward and reverse reaction by lowing the activation energy, increasing the speed of both

Jerry_T
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Re: Catalyst

Postby Jerry_T » Sun Mar 14, 2021 1:33 am

It increases the speed of both forward and reverse pathways of the reaction by lowering the activation energy.

Brianne Conway 1D
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Re: Catalyst

Postby Brianne Conway 1D » Sun Mar 14, 2021 1:40 am

The forward and reverse reactions follow the same energy pathway except in reverse, so when a catalyst lowers the activation energy for a reaction is makes it so both the forward and reverse reactions need less energy to proceed, meaning they will both go faster.

Chudi Onyedika 3A
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Re: Catalyst

Postby Chudi Onyedika 3A » Sun Mar 14, 2021 4:18 pm

It lowers the activation energy.

Nick Pascua 2L
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Re: Catalyst

Postby Nick Pascua 2L » Sun Mar 14, 2021 4:23 pm

The activation energy for both forward and reverse processes will be lowered when a catalyst is introduced. Thus the rates to convert back to each whether it be from reactant to product or product to reactant will be faster since less energy is needed for the reaction to completely take place.

rhettfarmer-3H
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Re: Catalyst

Postby rhettfarmer-3H » Sun Mar 14, 2021 5:15 pm

If it lowers the EA of the forward it must lower the reverse too because think about it of the reaction profile. They share the Ea hump in a sense. So if it goes down it helps both ways of the reaction.

Abhinav Behl 3G
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Re: Catalyst

Postby Abhinav Behl 3G » Sun Mar 14, 2021 6:59 pm

Adding a catalyst will lower the activation energy, which both the forward and reverse reactions need to overcome. So, when the Ea is reduced as a result of the addition of a catalyst, then the forward and reverse reactions will both be overcoming a smaller value of Ea.

Maryeli Garay 2H
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Re: Catalyst

Postby Maryeli Garay 2H » Sun Mar 14, 2021 8:35 pm

Adding a catalyst results in a decrease in activation energy in a reaction, which means that it goes faster! This is true for the reverse reaction too, so it goes faster as well :)

Ryan Agcaoili 2E
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Re: Catalyst

Postby Ryan Agcaoili 2E » Sun Mar 14, 2021 8:38 pm

To add on, when a catalyst is added, the overall K value stays the same since the forward and reverse rates are equal.

OmarArafat_2K
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Re: Catalyst

Postby OmarArafat_2K » Sun Mar 14, 2021 8:43 pm

Catalysts lower the activation energy, but increase the speed of the reaction rate. Same thing goes for both forward and reverse rxns.

Shrinidhy Srinivas 3L
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Re: Catalyst

Postby Shrinidhy Srinivas 3L » Sun Mar 14, 2021 9:56 pm

I find that the best way to think about this is to visualize a reaction profile. If you add a catalyst, the activation energy (the bump on a reaction profile) will go down. This means that for both the forward and the reverse reaction, there is less energy required to get to the end result. This is why the catalyst speeds up both the forward and the reverse reactions. In addition, a catalyst will not change K and as such, both the forward and reverse reactions need to be sped up.

Talia Dini - 3I
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Re: Catalyst

Postby Talia Dini - 3I » Sun Mar 14, 2021 11:04 pm

A catalyst increases the speed and lowers the activation energy of the forward and reverse reaction. Hope this helps!

Mansi Solanki 3A
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Re: Catalyst

Postby Mansi Solanki 3A » Sun Mar 14, 2021 11:08 pm

Since the activation energy of the reaction is lowered by the catalyst, it acts to increase the speed of both the forward and the reverse reaction. If you look at the graph, the bump at the transition state is a little lower due to the catalyst.

kristinalaudis3e
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Re: Catalyst

Postby kristinalaudis3e » Sun Mar 14, 2021 11:09 pm

it lowers the activation energy so that the reaction can occur faster!

Queena Chu 3E
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Re: Catalyst

Postby Queena Chu 3E » Sun Mar 14, 2021 11:10 pm

It lowers the activation energy and increases speed of forward and reverse reaction.

Naomi Hernandez-Ramirez 1J
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Re: Catalyst

Postby Naomi Hernandez-Ramirez 1J » Tue Mar 16, 2021 8:55 am

by lowering the activation energy it increases the speed of both forward and reverse pathways of the reaction

Ashrita Singh 2F
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Re: Catalyst

Postby Ashrita Singh 2F » Fri Mar 04, 2022 7:15 pm

A catalyst lowers the activation energy, which results in the rate of forward and reverse reactions to increase.

Brooke Gushiken 1B
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Re: Catalyst

Postby Brooke Gushiken 1B » Sat Mar 05, 2022 10:44 am

A catalyst lowers the activation energy (the minimum amount of energy that a species must have in order to react), therefore it speeds up the time that it takes both the forward and reverse reaction to happen. Hope this helps!

Rebekah Jung 1C
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Re: Catalyst

Postby Rebekah Jung 1C » Sat Mar 05, 2022 10:46 am

A catalyst lowers activation energy for the reaction to take place.

Samantha Loc 1B
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Re: Catalyst

Postby Samantha Loc 1B » Sat Mar 05, 2022 3:24 pm

A catalyst decreases the activation energy and increases the reaction rate for the reaction going both ways.

Albert Chen 1G
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Re: Catalyst

Postby Albert Chen 1G » Sat Mar 05, 2022 4:00 pm

Catalysts lower the activation energy for both the forward and reverse reaction. As a result, both rates are increased.

Samantha Toscano 2C
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Re: Catalyst

Postby Samantha Toscano 2C » Sun Mar 06, 2022 11:45 pm

The catalyst will cause the activation energy to be lowered, which will increase the reaction rates.

Amy Jordan 2A
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Re: Catalyst

Postby Amy Jordan 2A » Mon Mar 07, 2022 8:56 am

Hi, a catalyst will lower the activation energy of a reaction, which increases the speed of both the forward and reverse reactions. Hope this helps!


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