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

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

A) four times faster than the hydrogen molecules.
B) at 1/4 the speed of the hydrogen molecules.
C) sixteen times faster than the hydrogen molecules.
D) at 1/16 the speed of the hydrogen molecules.
E) at 1/ $\sqrt { 2 }$ the speed of the hydrogen molecules.

Correct Answer:

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