Dulong-Petit law
Ley de Dulong y Petit (capacidad calorífica atómica)
- Date
- 1819 · confidence high
- Place
- Paris, France
- Credited to
- Pierre Louis Dulong and Alexis Thérèse Petit
- People
- 👤 Alexis Thérèse Petit1791–1820👤 Pierre Louis Dulong1785–1838
- Field
- Matter & energy
What was discovered
The product of atomic weight and specific heat of solids is approximately constant (about 6 cal/mol·K). It allowed atomic weights to be corrected and was an early clue to the quantum theory of solids.
What it led to
- Correction of atomic weights
- Einstein-Debye quantum theory of specific heat
Built on
- Latent heat and specific heat1762
- Berzelius's atomic weights
Made possible
- determination of atomic weights of metals