Ideal gas law
Isotherms o an ideal gas. The curved lines represent the relationship atween pressur (on the vertical, y-axis) an volume (on the horizontal, x-axis) for an ideal gas at different temperaturs: lines that are farther away frae the origin (that is, lines that are nearer tae the tap richt-haund corner o the diagram) represent heicher temperaturs.
The ideal gas law is the equation o state o a hypothetical ideal gas. It is a guid approximation o the behaviour o mony gases unner mony condeetions, awtho it haes several leemitations. It wis first statit bi Émile Clapeyron in 1834 as a combination o the empirical Boyle's law, Charles' law an Avogadro's Law.[1] The ideal gas law is often written as
whaur:
- P is the pressur o the gas,
- V is the volume o the gas,
- n is the amoont o substance o gas (in moles),
- R is the ideal, or universal, gas constant, equal tae the product o the Boltzmann constant an the Avogadro constant,
- T is the absolute temperatur o the gas.
ReferencesEedit
- ↑ Clapeyron, E (1834). "Mémoire sur la puissance motrice de la chaleur". Journal de l'École Polytechnique (in French). XIV: 153–90. Facsimile at the Bibliothèque nationale de France (pp. 153–90).