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Thermodynamics — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsThermodynamics3 Marks
Question
State Dulong and Petit's law.
✓

Answer

According to the Dulong and Petit's law, the specific heat per mole of a chemically pure crystalline solid is approximately $6 cal mol^{-1}K^{-1}$ or roughly $25J mole^{-1} K^{-1}$. This law is obeyed with quite a good approximation for many substances at the room temperature.

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