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Find the average kinetic energy (in J) of oxygen molecules at a temperature of 321 K.

What is the rms speed (in m/s) of oxygen molecules at 19 ^oC? Since oxygen is a diatomic molecule, the mass of the oxygen molecule (O2) is 5.313 x 10^-26 kg.

If one wished to reduce the speed of an oxygen molecule to 63 % of the value that was obtained in the problem above, what temperature (in ^oC just write as "C") would be required?

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