Question:
Given below are two statements:
Statement I: In a diatomic molecule, the rotational energy at a given temperature obeys Maxwell's distribution.
Statement II: in a diatomic molecule, the rotational energy at a given temperature equals the translational kinetic energy for each molecule. In the light of the above statements, choose the correct answer from the options given below:
Correct Option: , 4
Solution:
(4)
The translational kinetic energy \& rotational kinetic energy both obey Maxwell's distribution
independent of each other.
T.K.E of diatomic molecules $=\frac{3}{2} \mathrm{kT}$
R.K.E. of diatomic molecules $=\frac{2}{2} \mathrm{kT}$
So statement $\mathrm{I}$ is true but statement II is false.