A substance as elementary and well known as argon still receives research attention. Stewart and Jacobsen have published a review of thermodynamic properties of argon that included the following 300 K isotherm.
|
p/MPa
|
0.4000
|
0.5000
|
0.6000
|
0.8000
|
1.000
|
|
Vm/(dm3mol-1)
|
6.2208
|
4.9736
|
4.1423
|
3.1031
|
2.4795
|
|
p/MPa
|
1.500
|
2.000
|
2.500
|
3.000
|
4.000
|
|
Vm/(dm3mol-1)
|
1.6483
|
1.2328
|
0.98357
|
0.81746
|
0.60998
|
(a) Compute the second virial coefficient, B, at this temperature.
(b) Use non-linear curve-fitting software to compute the third virial coefficient, C, at this temperature.