12. The rate constant for the reaction 2I→ I₂ is 7.0x10⁶ m³mol^-1s^-¹ at
296 K and 7.7×10⁶ m³mol^-1s^-¹ at 303 K. What is E_a (kJ/mol)?
(A) 16.5
(B) 35.5
(C) 10.2
(D) 185

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