the variable A


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bellaha4F
Posts: 104
Joined: Wed Sep 18, 2019 12:20 am

the variable A

Postby bellaha4F » Sun Mar 08, 2020 4:28 pm

i don't quite understand what the variable "A" in the Arrhenius Equation means (k=Ae^-Ea/RT), can someone please explain it to me, thanks!!

Daniel Chen 2L
Posts: 101
Joined: Fri Aug 30, 2019 12:15 am

Re: the variable A

Postby Daniel Chen 2L » Sun Mar 08, 2020 4:37 pm

The variable A is the frequency or the pre-exponential factor.

Jasmine W 1K
Posts: 49
Joined: Sat Sep 07, 2019 12:18 am

Re: the variable A

Postby Jasmine W 1K » Sun Mar 08, 2020 5:00 pm

A is the frequency factor or pre-exponential factor. It includes the number of collisions with the correct orientation.

Lauren Stack 1C
Posts: 100
Joined: Sat Aug 17, 2019 12:18 am

Re: the variable A

Postby Lauren Stack 1C » Sun Mar 08, 2020 5:43 pm

A was described in class as the frequency factor or pre-exponential factor (includes # of collisions with correct orientation)

Sofia Barker 2C
Posts: 101
Joined: Wed Sep 18, 2019 12:21 am

Re: the variable A

Postby Sofia Barker 2C » Sun Mar 08, 2020 9:16 pm

In the Arrhenius equation, A is a constant that varies for different reactions. It is called the frequency factor or pre-exponential factor and it is simply a value that takes into account the frequency of collisions when determining the rate constant for a specific reaction.


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