1. EEV, DI, S3, 2012

2. Coefficient values ± one standard deviation
toC
p/torr
T/K
1/T;K-1
ln(p)
25.2
42.1
298.35
34.1
63.6
307.25
45.7
105
318.85
56.1
159.7
329.25
65.1
224.8
338.25
Coefficient values ± one standard deviation
a =17.94 ±
b = ± 1.89
Ln(p(torr))
1/T

3. Ca

4. uncertainty: unit: ref.: a =-DHvap/(Rz) -4236 1.89 K Tc 540 z = 0.986
0.002 R=
J K-1 mol-1
DH = -Rz*alfa=
J mol-1
"
kJ mol-1
d(DH)=
svar: DH =
/- 0.07