Q: A cylinder of capacity 20L is filled with H2 gas. The total average kinetic energy of translatory motion of its molecules is 1.5 × 105 J. The pressure of hydrogen in the cylinder is
(a) 2 × 106 N/m²
(b) 3 × 106 N/m²
(c) 4 × 106 N/m²
(d) 5 × 106 N/m²
Ans: (d)