Table 5. Vaporization Enthalpies for 7M4MC.

temperature T/K	mass m/mg	(dm/dt)·109 kg/s	ν·103 (kg K mol)1/2 m–2 s–1	ln ν	103/T K
438.15	1.174	3.630	80.483	–2.520	2.282
443.15	1.164	4.550	101.455	–2.288	2.257
448.15	1.149	5.700	127.813	–2.057	2.231
453.15	1.115	7.040	158.738	–1.840	2.207
458.15	1.109	8.640	195.887	–1.630	2.183
463.15	1.003	10.590	241.404	–1.421	2.159
468.15	0.999	12.800	293.353	–1.226	2.136
473.15	0.988	15.350	353.668	–1.039	2.113
478.15	0.973	18.300	423.858	–0.858	2.091
483.15	0.855	21.680	504.763	–0.684	2.070
488.15	0.723	25.320	592.554	–0.523	2.049

series I
ln ν = 17.06–8570.44/T	r2 = 0.9994	σm = 71.09, σy = 0.15	ΔlgHm (463.15 K)/kJ mol–1 = (71.3 ± 0.6)a
series II
ln ν = 16.85–8461.06/T	r2 = 0.999	σm = 120.77, σy = 0.26	ΔlgHm (463.15 K)/kJ mol–1 = (70.3 ± 1.0)a
series III
ln ν = 16.96–8526.61/T	r2 = 0.9992	σm = 110.89, σy = 0.24	ΔlgHm (463.15 K)/kJ mol–1 = (70.9 ± 0.9)a
series IV
ln ν = 16.77–8455.23/T	r2 = 0.9997	σm = 118.56, σy = 0.26	ΔlgHm (463.15 K)/kJ mol–1 = (70.3 ± 1.0)a
weighted average: ⟨ΔlgHm (463.15 K) = (70.9 ± 0.8) kJ mol–1⟩

^aThe uncertainty corresponds to the combined standard and includes the uncertainties of the slope, the rate of mass loss, and the temperature.