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Answer to Question #33417 in Physical Chemistry for Sagnik Kar

Question #33417
What is the de broglie wavelength of a He-atom in a container at room temperature?
Expert's answer
In quantum mechanics, the concept of matter waves or de Broglie waves reflects the wave–particle duality of matter. The de Broglie relations show that the wavelength is inversely proportional to the momentum of a particle and is also called de Broglie wavelength. Also the frequency of matter waves, as deduced by de Broglie, is directly proportional to the total energy E (sum of its rest energy and the kinetic energy) of a particle. The de-Broglie wavelength of a He-atom in a container at room temperature is 0.79 Å. (It could be found in some handbooks ).

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