Dulong–Petit law
= Dulong–Petit law
{wiki=Dulong–Petit_law}
The Dulong–Petit law is a principle in physical chemistry that states that the molar heat capacity of a solid element is approximately constant and can be estimated from its atomic mass. Specifically, it posits that the molar heat capacity (\\(C_m\\)) of a solid element can be expressed as: \\\[ C_m \\approx 3R \\\] where \\(R\\) is the universal gas constant (\\(R \\approx 8.