Example 9.3-2 Estimate the thermal conductivity of molecular oxygen at 300K and low pressure
Using  ktpcal  since O2 is not monatomic
Here are your compounds' formulae and names:
No. Formula Name
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1 O2 oxygen
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>>ktcalc(300) <-- Unfortunately, O2 is not monatomic
ans =
0.0201
>>ktpcalc(300) <-- This is the best we can do
ans =
0.0257 <-- The units are W/(m*K)
>  restart;
>  k:=.0257*W/m/K;
>  m:=100*cm;W:=0.23901*cal/s;
>  k; The text got 6.14e-5cal/s/cm/K