A in Arrhenius Equation

[Michael Iter 2F]

What factors determine A? Does temperature play a role?

[005137088]

Yes temperature and reaction rate play a role

[Lawrence Tran 2H]

Yes temperature and reaction rate play a role

Could you (or anyone else) elaborate on this further? How so?

[Shannon Lau 14B - 1H]

Arrhenius Equation = k = Ae^Ea/RT which can be derived from the ln K2/ ln K1 = -Ea/R ( 1/T2 - 1/T1)

k = reaction-rate constant
A = frequency at which atoms and molecules collide in a way that leads to a reaction
E = activation energy for the reaction
R = ideal gas constant (8.314 J/Kmol)
T = absolute temperature.

I am assuming that since temperature affects how much collisions occur, that is how temperature plays a role. I think that A will either be given or we will have to use the other constants to manipulate the equation to find it.