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### speed of reaction based on activation energy

Posted: Thu Feb 28, 2019 5:07 am
If a reaction has a higher activation energy, does this mean that the reaction is slower?

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

Posted: Thu Feb 28, 2019 5:27 am
Yes, generally. This is because the reaction will require a greater buildup of heat in order to reach the energy of its transition state.

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

Posted: Thu Feb 28, 2019 12:50 pm
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.

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

Posted: Thu Feb 28, 2019 1:12 pm
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.

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

Posted: Thu Feb 28, 2019 1:15 pm
Yes, because more energy is necessary in order for the reaction to move forward.

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

Posted: Fri Mar 01, 2019 9:26 am
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.

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

Posted: Tue Mar 05, 2019 4:52 pm
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.