which relates the number 
of moles, the volume 
the pressure 
and the temperature 
of a sample of ideal gas, where 
is the molar gas constant. [P7.2, P7.3, P7.4]
is: the equation which relates the number of moles, the volume the pressure and the temperature of a sample of ideal gas, where is the molar gas constant. [P7.2, P7.3, P7.4]
is also known: as the ideal gas law, and may be written in a variety of ways. A particularly common form is 
where 
is the number of molecules in the sample and 
is Boltzmann's constant. [P7.2, P7.3, P7.4]
Copyright 1997, The Open University