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A sealed container of fixed volume 
contains 
molecules, each of mass 
, of an ideal gas at pressure 
.
State an expression, in terms of , , and the Boltzmann constant 
, for the thermodynamic temperature 
of the gas.
Show that the mean translational kinetic energy 
of a molecule of the gas is given by
Explain why the internal energy of the gas is equal to the total kinetic energy of the molecules.
