4. At 273 K, measurements of argon gave the following second and third virial coefficient:
in the expansion of Z in powers of 1/Vm. If we assume that the ideal gas law can still be applied to the
estimation of the second and third term of the virial expansion, i.e., that we can replace the powers of
1/Vm with the corresponding powers of P using the ideal gas law, calculate the compressibility factor Z
of Ar(g) at 100. atm and 273 K. From this result estimate the molar volume of Ar(g) under these
conditions.

Question

4. At 273 K, measurements of argon gave the following second and third virial coefficient:
in the expansion of Z in powers of 1/Vm. If we assume that the ideal gas law can still be applied to the
estimation of the second and third term of the virial expansion, i.e., that we can replace the powers of
1/Vm with the corresponding powers of P using the ideal gas law, calculate the compressibility factor Z
of Ar(g) at 100. atm and 273 K. From this result estimate the molar volume of Ar(g) under these
conditions.

anonymous · Answer

a_1=-21.7cm^3/mol
a_2=1200cm^6/mol^2