The activation energy of an uncatalyzed reaction is 95 kj/mol. The addition of a catalyst lowers the Ea to 55 kj/mol. Assuming the collision factor remains the same, by what factor will the catalyst increase the rate of the reaction at (a) 25 degrees celsius and b) 125 degrees celsius.
The answer is a) the catalyzed rxn is 10,000,000 times faster at 25 degrees C and b) the catalyzed rxn is 180,000 times faster at 125 degrees C.
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I just don't know what numbers to use. I think you use the Arrehenius Equation, but I don't know what numbers to put where.