Emile Amagat
Encyclopedia
Emile Hilaire Amagat was a French
physicist
. His doctoral thesis, published in 1872, expanded on the work of Thomas Andrews
, and included plots of the isotherms
of carbon dioxide
at high pressures. Amagat published a paper in 1877 that contradicted the current understanding at the time, concluding that the coefficient of compressibility of fluids decreased with increasing pressure. He continued to publish data on isotherms for a number of different gases between 1879 and 1882, and invented the hydraulic manometer, which was able to withstand up to 3200 atmospheres
, as opposed to 400 atmospheres using a glass apparatus. In 1880 he published his Law of Partial Volumes
.
Amagat was elected a member of the French Academy of Sciences
on 9 June 1902. A unit of number density
, amagat
, was named after him.
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...
physicist
Physicist
A physicist is a scientist who studies or practices physics. Physicists study a wide range of physical phenomena in many branches of physics spanning all length scales: from sub-atomic particles of which all ordinary matter is made to the behavior of the material Universe as a whole...
. His doctoral thesis, published in 1872, expanded on the work of Thomas Andrews
Thomas Andrews (scientist)
Thomas Andrews FRS was an Irish chemist and physicist who did important work on phase transitions between gases and liquids.-Life:Andrews was born in Belfast, Ireland where his father was a linen merchant...
, and included plots of the isotherms
Isothermal process
An isothermal process is a change of a system, in which the temperature remains constant: ΔT = 0. This typically occurs when a system is in contact with an outside thermal reservoir , and the change occurs slowly enough to allow the system to continually adjust to the temperature of the reservoir...
of carbon dioxide
Carbon dioxide
Carbon dioxide is a naturally occurring chemical compound composed of two oxygen atoms covalently bonded to a single carbon atom...
at high pressures. Amagat published a paper in 1877 that contradicted the current understanding at the time, concluding that the coefficient of compressibility of fluids decreased with increasing pressure. He continued to publish data on isotherms for a number of different gases between 1879 and 1882, and invented the hydraulic manometer, which was able to withstand up to 3200 atmospheres
Atmosphere (unit)
The standard atmosphere is an international reference pressure defined as 101325 Pa and formerly used as unit of pressure. For practical purposes it has been replaced by the bar which is 105 Pa...
, as opposed to 400 atmospheres using a glass apparatus. In 1880 he published his Law of Partial Volumes
Amagat's law
Amagat's law or the Law of Partial Volumes of 1880 describes the behaviour and properties of mixtures of ideal gases...
.
Amagat was elected a member of the French Academy of Sciences
French Academy of Sciences
The French Academy of Sciences is a learned society, founded in 1666 by Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French scientific research...
on 9 June 1902. A unit of number density
Number density
In physics, astronomy, and chemistry, number density is an intensive quantity used to describe the degree of concentration of countable objects in the three-dimensional physical space...
, amagat
Amagat
An amagat is a practical unit of number density. Although it can be applied to any substance at any conditions, it is defined as the number of ideal gas molecules per unit volume at 1 atm and 0 °C . It is named after Emile Amagat, who also has Amagat's law named after him...
, was named after him.