Consider the reaction
`A to 2B + C, Delta H = -15 kcal`. The energy of activation of backward reaction is `20 kcal mol^(-1)`. In presence of catalyst, the energy of activation of forward reaction is `3 kcal mol^(-1)`.At 400 K the catalystcauses the rate of the forward reaction to increase by the number of times equal to -

Options

A. `e^(3.5)`
B. `e^(2.5)`
C. `e^(-2.5)`
D. `e^(-2.303)`

Answer

B