(Solution) - The root mean square speed of an oxygen molecule O2 at 21oC -(2025 Original AI-Free Solution)

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The root-mean-square speed of an oxygen molecule, O2, at 21oC is 479 m/s. Calculate the de Broglie wavelength for an O2 molecule traveling at this speed. How does this wavelength compare with the approximate length of this molecule, which is about 242 pm? (For this comparison, state the wavelength as a percentage of the molecular length).