Activation energy

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Valeria Viera 1B
Posts: 60
Joined: Fri Apr 06, 2018 11:05 am

Activation energy

Postby Valeria Viera 1B » Sun Feb 17, 2019 5:47 pm

What is the relationship between activation energy and kinetic control?

305113590
Posts: 66
Joined: Fri Sep 28, 2018 12:28 am

Re: Activation energy

Postby 305113590 » Sun Feb 17, 2019 6:15 pm

Essentially, activation energy is the energy required for a reaction to proceed. For example, when you need to strike a match, you need a certain amount of energy in order for the match to be lit. Kinetics is related to how the activation energy changes as a result of a catalyst, temperature, concentration, and particle size. In class, we have always discussed state functions where we only care about the initial and final states. In kinetics, we care about how fast or slow the reaction will proceed.

jane_ni_2d
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Joined: Fri Sep 28, 2018 12:23 am

Re: Activation energy

Postby jane_ni_2d » Tue Feb 19, 2019 12:45 pm

The activation energy is the energy required for a reaction to happen!

Aidan Ryan 1B
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Joined: Fri Sep 28, 2018 12:17 am

Re: Activation energy

Postby Aidan Ryan 1B » Tue Feb 19, 2019 12:52 pm

Hey! What is kinetic control?

Lorena Zhang 4E
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Joined: Fri Sep 28, 2018 12:16 am

Re: Activation energy

Postby Lorena Zhang 4E » Fri Mar 01, 2019 9:23 am

Kinetic control means that even the reaction is favorable in terms of thermodynamics(gibbs free energy is zero), but kinetics trumps that because there is a huge activation energy barrier between the reactant and product.

904914909
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: Activation energy

Postby 904914909 » Mon Mar 04, 2019 8:46 am

Activation energy is the energy needed for a reaction to occur, so the lower the activation energy, the more thermodynamically favorable the process is

AlyssaBei_1F
Posts: 99
Joined: Fri Sep 28, 2018 12:17 am

Re: Activation energy

Postby AlyssaBei_1F » Mon Mar 04, 2019 12:29 pm

Activation energy is the energy needed for the reaction to occur. It is also known as Ea. The less activation energy needed the more favorable the process/reaction is.

Brian Hom 2F
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Joined: Fri Sep 28, 2018 12:24 am

Re: Activation energy

Postby Brian Hom 2F » Mon Mar 04, 2019 2:59 pm

The activation energy of a reaction can tell how fast the reaction will occur. A reaction with a low activation energy will occur faster than a reaction with high activation energy.

Aria Soeprono 2F
Posts: 64
Joined: Fri Sep 28, 2018 12:27 am

Re: Activation energy

Postby Aria Soeprono 2F » Mon Mar 04, 2019 3:06 pm

Activation energy can help explain why a reaction is thermodynamically favorable but still will not occur because it has a very high activation energy and is therefore not kinetically favorable.


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