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Catalysts

Posted: Mon Mar 12, 2018 12:21 pm
by lizzygaines1D
Do catalysts speed up both the forward and reverse reaction?

Re: Catalysts

Posted: Mon Mar 12, 2018 12:25 pm
by lindsay lathrop 2C
Yes, catalysts speed up both the forward and reverse reactions. This is why the catalyst does not effect the equilibrium composition even though it is changing the rate of the reaction.

Re: Catalysts

Posted: Mon Mar 12, 2018 12:51 pm
by Peri Bingham 1G
Since the catalysts increase the rates of the forward and reverse reactions equally, equilibrium composition is not changed but is just reached faster.

Re: Catalysts

Posted: Mon Mar 12, 2018 2:33 pm
by Amanda Wu 2C
Yes, catalysts increase the rates of the forward and reverse reactions. In turn, both the forward and reverse rate constants, k and k', increase but their ratio, k/k' which equals the equilibrium constant K, remains the same.

Re: Catalysts

Posted: Mon Mar 12, 2018 3:35 pm
by Ya Gao
Yes, because catalyst lowers the activation energy which works in both the forward and reverse reactions.

Re: Catalysts

Posted: Tue Mar 13, 2018 9:37 am
by Alejandra Rios 1L
Yes, a catalyst works to lower activation energy, therefore this corresponds to the rate of both the forward and reverse reactions.

Re: Catalysts

Posted: Tue Mar 13, 2018 12:10 pm
by MorganYun1H
catalysts lower activation energy therefore the forward and reverse rate will both increase.

Re: Catalysts

Posted: Wed Mar 13, 2019 10:07 am
by Danny Elias Dis 1E
Do catalysts always enter with the reactants of the first elementary step and end with the products in the last elementary step, or can it be the other way around?

Re: Catalysts

Posted: Wed Mar 13, 2019 9:18 pm
by haleyervin7
Is there any case where there must be a catalyst for a reaction to occur?

Re: Catalysts

Posted: Wed Mar 13, 2019 9:41 pm
by Karan Thaker 2L
Important to note catalysts lower Ea, through altering and lowering the transition state of the reactants. They can affect orientation to idealize reactants' position for a reaction, or also weaken bonds of reactants to make them easier to break.

Re: Catalysts

Posted: Wed Mar 13, 2019 10:46 pm
by 805169754
haleyervin7 wrote:Is there any case where there must be a catalyst for a reaction to occur?

You can think about enzymes, which are considered catalysts, in biological scenarios where they are required for some reactions to occur.

Re: Catalysts

Posted: Sun Mar 17, 2019 5:40 pm
by Dong Hyun Lee 4E
Catalysts increasethe rate of reactions as they lower the activation energy required to pass the transition state.