Assuming the nitrogen molecule is moving with r.m.s

PHYSICS · Single correct · A Level · Physics · Particles and radiation · Particles and radiation

Problem

Assuming the nitrogen molecule is moving with r.m.s. velocity at 400 K, the de-Broglie wavelength of nitrogen molecule is close to: (Given: nitrogen molecule weight: 4.64×10−26 kg4.64 \times 10^{-26} \text{ kg}, Boltzman constant: 1.38×10−23 J/K1.38 \times 10^{-23} \text{ J/K}, Planck constant: 6.63×10−34 J.s6.63 \times 10^{-34} \text{ J.s}) (1) 0.24 Å (2) 0.20 Å (3) 0.34 Å (4) 0.44 Å

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