The value of the rate constant for the gas phase reaction...

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The value of the rate constant for the gas phase reaction, 2NO₂ + F₂ → 2NO₂F is 38 dm³ mol^-1 s^-1 at 300K. The order of the reaction is

A. 0

B. 1

C. 2

D. 3

Answer: Option C

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