The Following Questions Refer to the Reaction 2A₂ + B₂

Multiple Choice

The following questions refer to the reaction 2A₂ + B₂ → 2C. The mechanism below has been proposed:
-The activation energy for the reaction H₂(g) + I₂(g) → 2HI(g) is changed from 184 kJ/mol to 59.0 kJ/mol at 600. K by the introduction of a Pt catalyst. Calculate the value of the ratio rate(catalyzed) /rate(uncatalyzed) .

A) 1.00
B) 0.321
C) 1.38
D) 7.62 × 10¹⁰
E) none of these