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Statement of a problem № 11203

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Recall from Section 14.3 that the average kinetic energy of an atom in a monatomic ideal gas is given by K̅E̅ = 3/2 kT, where k = 1.38 × 10-23 J/K and T is the Kelvin temperature of the gas. Determine the de Broglie wavelength of a helium atom (mass = 6.65 × 10-27 kg) that has the average kinetic energy at room temperature (293 K).




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