Which of the following statements is correct ?

Options

A. Heat capacity of solids and liquids is almost independent of any variations of external pressure, that may take place during the process of heating.
B. Dulong and Petits law (at. `Wt. xx Sp. "Heat" = 6.4` ) is better applicable to the substance/element of lower atomic/molecular mass.
C. Applicability of Dulong & Petits law to molecular species is independent of molecular structures/constitiution.
D. Specific heat of a gas is not influenced considerably by the conditions of the heating process.

Answer

A

Explanation

(B) & (C ) Dulong & Petits law is better applicable to heavier elements/molecules and dependent of molecular constitutions as specific heat is dependent of the same.
(D) Specific heats of gases varies with the process of heating ( constant pressure or constant volume)