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Oxygen molecules are sixteen times as massive as hydrogen molecules.

At the same temperature, which type of molecule would you expect to move faster?

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keijosalonen

Answer: hydrogen molecules.

Explanation: in same temperature molecules have same average kinetic energy.

You can estimate it solving E = 3/2 kT = 1/2 mv². Constant k is Boltzmann constant.

Lighter molecule has greater speed

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