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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 :
- Statement I is false but Statement II is true.
- Both Statement I and Statement II are false.
- Both Statement I and Statement II are true.
- Statement I is true but Statement II is false.
Correct answer: Statement I is true but Statement II is false.
Solution
Statement I is correct because the rotational energy levels of diatomic molecules indeed follow Maxwell's distribution at thermal equilibrium. However, Statement II is incorrect as the translational kinetic energy does not equal the rotational energy for each molecule; they are related but not equal.
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