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cse • paper_1 • thermal_physicscse-1997-subject-04-002

Degrees of freedom — UPSC CSE 1997 Physics PYQ

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A gas at a pressure P and temperature T has a density \rho. The velocity of sound in this gas is v. Obtain an expression for the degrees of freedom of the gas molecules. At STP, \rho = 1.3\text{ kg m}^{-3} and \text{v} = 330\text{ ms}^{-1}. Calculate the degrees of freedom.

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