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NEET 1993 (AIPMT) · Degrees of Freedom & Internal Energy

Degrees of Freedom & Internal Energy question from NEET 1993 (AIPMT)

Q44NEET 1993 · AIPMTEasy

Degrees of Freedom & Internal Energy

The number of translational degrees of freedom for a diatomic gas is

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Answer: (b)

Every molecule's centre of mass can move along $x$ , $y$ , $z$ : 3 translational degrees of freedom.
Diatomic gas adds 2 rotational, but the question asks only translational.
So the answer is (b) 3.

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