In a diatomic molecule, the rotational energy at a given temperature

(a) Obeys Maxwell's distribution

(b) Have the same value for all molecules

(c) Equals the translational kinetic energy for each molecule

(d) Is (2/3)rd the translational kinetic energy for each molecule

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Payal Gupta | Contributor-Level 10

8 months ago

This is a multiple choice answer as classified in NCERT Exemplar

(a), (d) The total energy associated with the molecule is

E= $\frac{1}{2} m v_{x}^{2} + \frac{1}{2} m v_{y}^{2} + \frac{1}{2} m v_{z}^{2} + \frac{1}{2} I_{x} w_{x}^{2} + \frac{1}{2} I_{y} w_{y}^{2}$

The number of independent terms in the above expressions is 5. So we can predict velocities of molecule by maxwell's distribution, hence the above expression obeys maxwell 's

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physics ncert solutions class 11th 2023

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In a diatomic molecule, the rotational energy at a given temperature (a) Obeys Maxwell's distribution (b) Have the same value for all molecules (c) Equals the translational kinetic energy for each molecule (d) Is (2/3)rd the translational kinetic energy for each molecule

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