Calculate the Root-Mean-Square Speed of an O₂ Molecule with an Average

question 16

Multiple Choice

Calculate the root-mean-square speed of an O₂ molecule with an average kinetic energy of 6.2 * 10^-21 J at 25C.
(1 J = 1 kg . m²/s²; 1 mol = 6.02 * 10²³)

• A)20 pm/s
• B)230 km/s
• C)480 m/s
• D)120 m/s
• E)230 m/s

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