PhysicsHard251×since 2002Q7426If the root mean square velocity of hydrogen molecule at a given temperature and pressure is 2 km/s2 \mathrm{~km} / \mathrm{s}2 km/s, the root mean square velocity of oxygen at the same condition in km/s\mathrm{km} / \mathrm{s}km/s is :A1.0B1.5C2.0D0.5Check answerSkip