Determine the thermal conductivity of the following species at 273 K and 1.00 atm:

a. Ar (σ = 0.36 nm²)

b. Cl₂(σ = 0.93 nm² )

c. 2SO₂(σ = 0.58 nm² , geometry: bent)

You will need to determine C_V,m for the species listed. You can assume that the translational and rotational degrees of freedom are in the high-temperature limit, and that the vibrational contribution to C_V,m can be ignored at this temperature.