PhysicsEasy251×since 2002Q7386The number of molecules in one litre of an ideal gas at 300 K and 2 atmospheric pressure with mean kinetic energy 2 ×\times× 10^−-−9 J per molecules is :A0.75 ×\times× 10¹¹B3 ×\times× 10¹¹C1.5 ×\times× 10¹¹D6 ×\times× 10¹¹Check answerSkip