Question

12) According
to classical theory of Lattice heat capacity
the molar heat capacity of all solid is

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Answer 1

Answer:

Experimentally, we know two facts: Near room temperature, the heat capacity of most solids is ∼ 3◦ K / atom. This experimental result is known as Dulong and Petit law.

Answer 2

⇒The heat capacity per mole of many elements is 3R.

⇒ Therefore, the heat capacity of most solid crystalline substances is 3R per mole of substance.