Latent Internal Energy

The latent internal energy of a system is the internal energy a system requires to undergo a phase transition. Its value is specific to the substance or mix of substances in question. The value can also vary with temperature and pressure. Generally speaking the value is different for the type of phase change being accomplished. Examples can include Latent internal energy of vaporization (liquid to vapor), Latent internal energy of crystallization (liquid to solid) Latent internal energy of sublimation (solid to vapor). These values are usually expressed in units of energy per mass or per mole such as J/mol or BTU/lb. Often a negative sign will be used to represent energy being withdrawn from the system, while a positive value represents energy being added to the system. However, reference sources do vary so check the source to be sure.

For every type of latent internal energy there is an opposite. For example the latent internal energy of fusion (liquid to solid) is equal to the negative of the Latent internal energy of melting (solid to liquid)

States of matter (classic)
State
  • Solid
  • Liquid
  • Gas / Vapor
  • Plasma
Low energy
  • Bose–Einstein condensate
  • Fermionic condensate
  • Degenerate matter
  • Quantum Hall
  • Rydberg matter
  • Strange matter
  • Superfluid
  • Supersolid
High energy
  • QCD matter
  • Quark–gluon plasma
  • Supercritical fluid
Other states
  • Colloid
  • Glass
  • Liquid crystal
  • Magnetically ordered
    • Antiferromagnet
    • Ferrimagnet
    • Ferromagnet
  • String-net liquid
  • Superglass
Transitions
  • Boiling
  • Boiling point
  • Condensation
  • Critical line
  • Critical point
  • Crystallization
  • Deposition
  • Evaporation
  • Flash evaporation
  • Freezing
  • Ionization
  • Lambda point
  • Melting
  • Melting point
  • Recombination
  • Regelation
  • Saturated fluid
  • Sublimation
  • Supercooling
  • Triple point
  • Vaporization
  • Vitrification
Quantities
  • Enthalpy of fusion
  • Enthalpy of sublimation
  • Enthalpy of vaporization
  • Latent heat
  • Latent internal energy
  • Trouton's ratio
  • Volatility

Famous quotes containing the words latent, internal and/or energy:

    The latent causes of faction are thus sown in the nature of man.
    James Madison (1751–1836)

    When a person doesn’t understand something, he feels internal discord: however he doesn’t search for that discord in himself, as he should, but searches outside of himself. Thence a war develops with that which he doesn’t understand.
    Anton Pavlovich Chekhov (1860–1904)

    Much of the modern resistance to chastity comes from men’s belief that they “own” their bodies—those vast and perilous estates, pulsating with the energy that made the worlds, in which they find themselves without their consent and from which they are ejected at the pleasure of Another!
    —C.S. (Clive Staples)