One mole (6.02 10 23 atoms) of helium atoms in the gas phase has 3700 J

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One mole (6.02 × 1023 atoms) of helium atoms in the gas phase has 3700 J of microscopic kinetic energy at room temperature.
If we assume that all atoms move with the same speed, what is that speed? The mass of a helium atom is 6.68 × 10-27 kg.

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