# Statistical Thermodynamics

1. Mar 14, 2009

### mccals02

(1) Derive the expression for $$\mu$$PG for a monatomic molecule (like argon) which has no internal structure and only has translational energy.

where $$\mu$$PG is the perect gas contribution to the chemical potential.

(2)Treating the molecule N2 as a linear, rigid molecule is an excellent approximation.
Calculate numerical values of the perfect gas contribution to the molar entropy
and the molar isobaric heat capacity for N2 at 0 oC and 1 atmosphere. Justify any
contributions to the internal energy of the molecule that you omit from your
calculation.

For this i can plug the numbers in, i am just unsure of the equations to use.