The Activation Energy of a Certain Uncatalyzed Reaction Is 64 $\circ$

Multiple Choice

The activation energy of a certain uncatalyzed reaction is 64 kJ/mol. In the presence of a catalyst, the E_a is 55 kJ/mol. How many times faster is the catalyzed than the uncatalyzed reaction at 400 ^$\circ$ C Assume that the frequency factor remains the same.

A) 5.0 times
B) 1.16 times
C) 15 times
D) 2.0 times
E) 0.2 times