François Jacques Dominique Massieu (4 August 1832 – 5 February 1896) was a French
thermodynamics
Thermodynamics is a branch of physics that deals with heat, Work (thermodynamics), work, and temperature, and their relation to energy, entropy, and the physical properties of matter and radiation. The behavior of these quantities is governed b ...
engineer noted for his two 1869 characteristic functions, each of which known as a
Massieu function
In thermodynamics, the Massieu function (sometimes called Massieu–Gibbs function, Massieu potential, or Gibbs function, or characteristic (state) function in its original terminology), symbol ( Psi), is defined by the following relation:
...
(the first of which sometimes called
free entropy
Free may refer to:
Concept
* Freedom, the ability to act or change without constraint or restriction
* Emancipate, attaining civil and political rights or equality
* Free (''gratis''), free of charge
* Gratis versus libre, the difference bet ...
), as cited by American engineer
Willard Gibbs
Josiah Willard Gibbs (; February 11, 1839 – April 28, 1903) was an American mechanical engineer and scientist who made fundamental theoretical contributions to physics, chemistry, and mathematics. His work on the applications of thermodynami ...
in his 1876 ''
On the Equilibrium of Heterogeneous Substances
In the history of thermodynamics, "On the Equilibrium of Heterogeneous Substances" is a 300-page paper written by American chemical physicist Willard Gibbs. It is one of the founding papers in thermodynamics, along with German physicist Hermann ...
''.
References
External links
*Nivoit, E. (1897).
Notice of the Life and Work of Mr. Massieu Inspector General of Mines” (French → English), Annales des Mines, 9th Series, Vol. 11.
{{DEFAULTSORT:Massieu, Francois
1832 births
1896 deaths
Thermodynamicists