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Assuming the nitrogen molecule is moving...

Assuming the nitrogen molecule is moving with r.m.s. velocity at 400K, the de Broglie wavelength of nitrogen molecule is close to :
(Given : nitrogen molecule weight : `4.64 xx 10^(-26) kg,` BoItzman constant : `1.38 xx 10^(-23) j//K`, Planck constant : `6.63 xx 10^(-34)J.s`)

A

0.24Å

B

0.20Å

C

0.34Å

D

0.44Å

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