The table below presents rate constants measured at three temperatures for the following reaction, which is involved in the production of nitrogen oxides in internal combustion engines. (Assume the temperatures all have at least two significant figures.)

Determine the activation energy of the reaction in kJ/mol.

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O(g) + N₂(g) → NO(g) + N(g) k (L mol-¹ s-¹) Temperature (K) 4.4 x 10² 2000 2.5 X 105 3000 5.9 X 106 4000