Helmholtz: Cpo(Ideal Gas)
Cpo/
R =
1 + t - {
åa
i×n
i×(n
i - 1)
×tni}
(ni¹ 0 or 1)
+
åb
i×(c
i×t)
2×exp(c
i×t) / {exp(c
i×t) - 1}
2;
where
t =
Tc/T,
Tc = the critical temperature,
and the summations are from
i = 1 to
nTerms.
The example is for fitted heat capacities in the ideal-gas state at
p = 100 kPa for
2-methylpyrrole.