Q138 / 160 · AP EAMCET 2018 (24 Apr Shift 2) · Physics
$2.8 \mathrm{~g}$ of nitrogen gas is in a vessel at a temperature $127^{\circ} \mathrm{C}$. The amount of heat energy required to increase the rms speed of the nitrogen molecules by $41.4 \%$ is $\left(\mathrm{R}=8.31 \mathrm{~J} \mathrm{~mol}^{-1} \mathrm{~K}^{-1}\right)$
- A$376 \mathrm{~J}$
- B$415 \mathrm{~J}$
- C$1662 \mathrm{~J}$
- Correct answerD$831 \mathrm{~J}$
Hence, the correct answer is option: 'D'.