The reaction, ${N_2}{O_5} \longrightarrow 2NO + \frac{1}{2}\,{O_2}$ is of first order for $N_2O_5$ with rate constant $6.2 \times 10^{-4}\, s^{-1}$. what is the value of rate of reaction when $[N_2O_5] = 1.25\, mol\, L^{-1}$

  • A

    $5.15 \times 10^{-5}\, mol\, L^{-1}\, s^{-1}$

  • B

    $6.35 \times 10^{-3}\, mol\, L^{-1}\, s^{-1}$

  • C

    $7.75 \times 10^{-4}\, mol\, L^{-1}\, s^{-1}$

  • D

    $3.85 \times 10^{-4}\, mol\, L^{-1}\, s^{-1}$

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