Clapeyron equation

Cla·​pey·​ron equation | \ ˈklapāˌrōn-, -rän- \
variants: or Clapeyron's equation

Definition of Clapeyron equation

: an equation relating to change of phase in a pure substance (as vaporization of a liquid) that gives the rate of change with temperature of the pressure at equilibrium between the phases in terms of the heat of transition and the volumes of the phases before and after the transition — compare clausius-clapeyron equation

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

History and Etymology for Clapeyron equation

after B.P.E.Clapeyron †1864 French physicist

Keep scrolling for more

Learn More About Clapeyron equation

Dictionary Entries Near Clapeyron equation

clap eyes on

Clapeyron equation


See More Nearby Entries 

Statistics for Clapeyron equation

Cite this Entry

“Clapeyron equation.” Dictionary, Merriam-Webster, Accessed 27 Oct. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon


Test Your Vocabulary

Dog Words Quiz

  • shiba puppy more or less demanding cuddles
  • Which of the following animals has a dog in its etymology?
Spell It

Can you spell these 10 commonly misspelled words?

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!