At $\mathrm{T}(\mathrm{K})$, the $\mathrm{u}_{\mathrm{rms}}$ of $\mathrm{CO}_2$ is $412 \mathrm{~ms}^{-1}$. What is its kinetic energy (in $\mathrm{kJ} \mathrm{mol}^{-1}$ ) at the same temperature ? $\left(\mathrm{CO}_2=44 \mathrm{u}\right)$.

• Correct answer
  A

  $3.7343$
• B

  $7.4687$
• C

  $14.9374$
• D

  $3734.3$

Hence, the correct answer is option: 'A'.