## speed of reaction based on activation energy

FrankieClarke2C
Posts: 59
Joined: Fri Sep 28, 2018 12:28 am

### speed of reaction based on activation energy

If a reaction has a higher activation energy, does this mean that the reaction is slower?

Dimitri Speron 1C
Posts: 60
Joined: Fri Sep 28, 2018 12:17 am
Been upvoted: 1 time

### Re: speed of reaction based on activation energy

Yes, generally. This is because the reaction will require a greater buildup of heat in order to reach the energy of its transition state.

fgalasso1b
Posts: 32
Joined: Wed Oct 03, 2018 12:15 am

### Re: speed of reaction based on activation energy

It is because since you need more energy to build up, the longer it takes to acquire the energy for the reaction to take place.

JT Wechsler 2B
Posts: 62
Joined: Fri Sep 28, 2018 12:16 am

### Re: speed of reaction based on activation energy

Typically this is the case. To have a reaction occur, you have to meet a set amount of energy (the activation energy) to have a reaction proceed. Typically the higher the activation energy is, the more energy will be needed to be put into the system.

mbaker4E
Posts: 69
Joined: Fri Sep 28, 2018 12:26 am

### Re: speed of reaction based on activation energy

Yes, because more energy is necessary in order for the reaction to move forward.

Lorena Zhang 4E
Posts: 63
Joined: Fri Sep 28, 2018 12:16 am

### Re: speed of reaction based on activation energy

Yes. To add on that, when adding catalyst, you increase the rate of reaction because the activation energy barrier is lowered so that the reaction can proceed faster.

Posts: 60
Joined: Fri Sep 28, 2018 12:19 am

### Re: speed of reaction based on activation energy

Typically yes because the reaction will require a greater buildup of energy to overcome the activation barrier. Take a look at the Arrhenius Equation:
k = Ae^-(EA/RT)
A higher activation energy would result in a slower reaction.