If the RMS velocity of an ideal gas is $\mathrm{ms}^{-1}$ at $127^{\circ} \mathrm{C}$, at what temperature its RMS velocity is doubled?

• A

  $200 \mathrm{~K}$
• B

  $160 \mathrm{~K}$
• Correct answer
  C

  $1600 \mathrm{~K}$
• D

  $800 \mathrm{~K}$

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