Home > Émile Clapeyron

Born in Paris, Émile Clapeyron makes his studies at the École Polytechnique and the École des Mines, before leaving to Saint Petersburg in 1820 to teach at the École des Travaux Publics. It returns to Paris only after the Revolution of July 1830, undertaking the construction of the first railway line connecting Paris to Versailles and Saint-GermainSaint-Germain may refer to various French phenomena: the 6th century bishop of Paris, canonized as Saint Germain of Paris who founded an abbey in the fields near Paris, now the church of Saint-Germain-des-Pres which gave its name to the neighborhood on th.

In 1834Events January 1 Abolition of customs charges at borders within Germany. January 3 The government of Mexico imprisons Stephen F. Austin in Mexico City March 6 York, Upper Canada is incorporated as Toronto. March 18 The Tolpuddle Martyrs, six Dorset farm l, he contributes its first share to the creation of modern thermodynamics by publishing a report entitled the Driving force of the heat, in which it develops the work of the physicist Nicolas Léonard Sadi CarnotSadi Carnot Sadi Carnot ( Paris, June 1 1796 Paris, August 24 1832) was a French mathematician who wrote on the principles of the second law of thermodynamics in his treatise on heat engines (Carnot cycle). He is not to be confused with Marie Francois Sad, deceased two years before. In this memory, it gives in particular a graphic translation of the Carnot theorem , which stipulates that the output of a heat engineA heat engine performs the conversion of heat energy to work by exploiting the temperature gradient between a hot " source" and a cold " sink". Heat is transferred to the sink from the source, and in this process some of the heat is converted into work. with two heat reservoirs is maximum if the machine functions in a reversible way. This diagram of Clapeyron constitutes a representation of the states of a fluid by means of curves giving the pressurePressure (symbol: p is a measure of force per unit area. where p is the pressure F is the force A is the area Often F is taken to be the of the magnitude of the mean vector force normal to the surface of area A upon which it exerts; the "surface" not nece of the fluid according to its volumeVolume (also called capacity is a quantification of how much space an object occupies. The SI unit for volume is the cubic metre (American spelling meter). The volume of a solid object is a numerical value given to describe the three-dimensional concept o to a given temperatureTemperature is the physical property of a system which underlies the common notions of "hot" and "cold"; the material with the higher temperature is said to be hotter. General description The formal properties of temperature are studied in thermodynamics..

In 1843Events February 6 The first minstrel show in the United States The Virginia Minstrels opens (Bowery Amphitheatre in New York City). February 11 Giuseppe Verdi's opera I Lombardi premieres in Milan May 18 The Disruption of the Church of Scotland took place, Clapeyron defines the concept of reversible transformation. This concept enables him to write the principle of Carnot (corresponding to the second principle of thermodynamics) in the form of an equality, which makes it more usable in practice. Within this framework, it establishes the Clapeyron formula, relation which gives the latent heat of change of state of a pure substance . Clapeyron is also illustrated by many other work relating to the formulation of the equation of perfect gases, the equilibrium of homogeneous solids, or calculations of the constraints applying to beams. He was elected member of the Académie des Sciences in 1858.

See also: Stefan problem