Physics Kinetic Theory of Gases All Topic Question for Revision Test MCQ (Single Correct)

At temperature tends to zero, i.e.

A
specific heat of all substances approaches zero
B
specific heat of all substances approaches infinity
C
specific heat of all substances may be zero or infinity
D
None of the above

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The correct answer is:
A

The prediction of specific heat, based on law of equipartition of energy, are independent of temperature. But as we go to low temperatures, there is a marked departure from this prediction. Specific heat of all substances approach zero as . This is related to the fact that degrees of freedom get frozen and ineffective at low temperatures.

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