Redirected from Ideal gas law
A gas which obeys gas laws exactly is hypothetical, and is known as an ideal gas (or perfect gas).
Charles Law, named after Jacques Charles, states that the pressure that a gas exerts on the walls of its container is determined by the momentum of the atoms and molecules of the gas, which in turn is determined by the temperature. As the temperature increases the atoms and molecules move faster, and so exert a greater pressure on the walls. If the walls are rigid, such that the volume of the container is held constant, then the relationship between pressure P and temperature T is given by Charles' Law:
See also Equations of State
which states that pressure P multiplied by the volume V is equal to the number of moles of the gas n, multiplied by the temperature T and a constant R. In SI units, the pressure is expressed in pascals, the volume in litres, and the temperature in Kelvin.
See also: Universal gas equation