Oxygen molecules are 16 times more massive than hydrogen molecules.At a given temperature,how do their average molecular speeds compare? The oxygen molecules are moving

Question

Quizplus · Accepted Answer

The average molecular speed of a gas is inversely proportional to the square root of its molar mass. Since oxygen molecules are 16 times more massive than hydrogen molecules, their average speed will be $\sqrt{16} = 4$ times slower, not faster, than that of hydrogen molecules.

Oxygen Molecules Are 16 Times More Massive Than Hydrogen Molecules 2\sqrt { 2 }2​

Oxygen Molecules Are 16 Times More Massive Than Hydrogen Molecules $\sqrt { 2 }$