Find the de Broglie wavelength corresponding to the root-mean-square velocity of hydrogen molecules at room temperature (20^(@)C).

Find the de Broglie wavelength corresponding to the root-mean-square v

1.	Find the de Broglie wavelength corresponding to the root-mean-square velocity of hydrogen molecules at room temperature (20^(@)C).
Answer» Solution :The root-mean-square MOMENTUM of the molecule may be FOUND from the condition `3/2kT=BAR(p^(2))//2m`, from which Pr.m.s. = `sqrt(3mkT)` and the de Broglie WAVELENGTH `bar(LAMDA)=h/(Pr.m.s.)=h/sqrt(3mkT)`.

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Find the de Broglie wavelength corresponding to the root-mean-square velocity of hydrogen molecules at room temperature (20^(@)C).

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