that has the value 
(to four significant figures). [P7.5]
is: the physical constant that has the value (to four significant figures). [P7.5]
is expressible: in terms of two other physical constants, the molar gas constant 
and Avogadro's constant 
by 
From this, Boltzmann's constant is seen to act as the gas constant per molecule. [P7.5]
appears: in equations which relate microscopic properties to macroscopic parameters of physical systems; e.g. in an ideal gas at temperature 
the mean translational kinetic energy of a particle is 
[P7.5]
Copyright 1997, The Open University