k=1.38×10−23JK−1
Mass of electron =9×10−31kg
⇒λD=2m×23×kTh=3mkTh
⇒λD=3×9×10−31×1.38×10−23×3006.6×10−34=105.72×10−276.6×10−34=62Aο
Thus x=62Aο
The temperature of an ideal gas in three dimensions is 300K. The corresponding de-Broglie wavelength of the electron approximately at 300K is:
[me=mass of electron =9×10−31kg, h=Planck constant =6.6×10−34Js, kB=Boltzmann constant=1.38×10−23JK−1]
Held on 1 Sept 2021 · Verified 6 Jul 2026.
2.26nm
3.25nm
8.46nm
6.26nm
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