Trouton's rule
Regla de Trouton
- Date
- 1884 · confidence low
- Place
- Dublin, Ireland
- Credited to
- Frederick Thomas Trouton
- Field
- Matter & energy
What was discovered
Empirical thermodynamics rule stating that the molar entropy of vaporization of many liquids takes a similar value, around 85-88 J/(K·mol), at their boiling point, formulated by Frederick Thomas Trouton.
What it led to
- Quick estimates of a liquid's enthalpy of vaporization
- Study of exceptions to the rule (associated liquids such as water) and their causes
- Contributions to the chemical thermodynamics of phase transitions
- Basis for later empirical rules in physical chemistry