Previous Year NEET Question- Thermodynamics L-5

Question: A cylinder contains hydrogen gas at pressure $249 \mathrm{kPa}$ and temperature $27^{\circ} \mathrm{C}$ Its density is : $\left(R=8.3 \mathrm{~J} \mathrm{~mol}^{-1} \mathrm{~K}^{-1}\right)$#

A) $0.2 \mathrm{~kg} / \mathrm{m}^3$

B) $0.1 \mathrm{~kg} / \mathrm{m}^3$

C) $0.02 \mathrm{~kg} / \mathrm{m}^3$

D) $0.5 \mathrm{~kg} / \mathrm{m}^3$

Answer: $0.2 \mathrm{~kg} / \mathrm{m}^3$#