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At 400K , the energy of activation of a ...

At `400K` , the energy of activation of a reaction is decreased by `0.8Kcal` in the presence of catalyst. Hence, the rate will be
a. Increased by `2.73` times
b. Increased by `1.18` times
c. Decreased by `2.72` times
d. Increased by `6.26` times

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