Heats of Vaporization of 1,1,2-Trichloroethane, 1-Propanol, and 2-Propanol; Vapor Heat Capacity of 1,1,2-Trichloroethane

Abstract

Heats of vaporization of 1,1,2-trichloroe~ane, 1-propan?l, and 2-propanol have been determined at v~r ious temperatures. The vapor heat capacity of 1,1,2-tnchloroethane has been measured at 96.76 C, 148.33°C, and 201.11 °C.

A correlation for heat of vaporization of pure compounds

“…Vetere [28] ΔH v /RT c =A+BT r +CT r D 24 Somayajulu I [29] ΔH v =A(1/T r − 1)+B(1− T r ) 3/8 +C(1− T r ) 18 [24], [54], [55], [56], [57], [58], [ [24], [41], [54], [57], [58], [59], [70], [71], [ [24], [38], [41], [54], [57], [72], [103], [104], [ [46], [49], [58], [70], [117], [118], [119], [120], [121], [122], [123], [ [38], [49], [58], [72], [74], [109], [110], [127], [132], [133], …”

Specific enthalpy increments for propan-1-ol at temperatures up to 573.2 K and 11.3 MPa

“…Equation (7) is again of suitable form, and it was soon established that the parameter •, Table 2, derived from the table 1 measurements. , Radsoz and Lydersen (13) , Williams and Harrison (11) and Matthews and McKetta. (12) m = 1.5 was a good choice;…”

“…Wilhoit and Zwolinsky (9) list several values of the enthalpy of vaporisation h vap at T = 298.15 K. As the value (795 ± 12) kJ · kg −1 was obtained by two groups of workers, Williamson and Harrison (11) and Matthews and McKetta, (12) and it is in the middle of the range of available values, we judged it to be the best. For gaseous propan-1-ol the quantity (∂h/∂ p) T = B − T (dB/dT ) is the isothermal Joule-Thomson coefficient φ o of the vapour, so the first integral is easily evaluated and to a good approximation it is equal to φ o (0 − p s ).…”

“…(9) At the normal boiling temperature 370.69 K, we chose the value h vap (T b ) = (690 ± 10) kJ · kg −1 which is the mean of the value 694 kJ · kg −1 obtained by Williamson and Harrison (11) and 685 kJ · kg −1 obtained by Mathews and McKetta. (12) The specific enthalpies of vaporisation obtained by Radosz and Lydersen (13) and our own values listed in table 2 were included in the data set fitted.…”

A theoretical analysis on enthalpy of vaporization: Temperature-dependence and singularity at the critical state

“…Figure 3. Comparison of the composite latent enthalpy formula (15) with experimental data from [14][15][16][17][18][19][20][21][22]. Figure 3 shows that the composite latent formula can qualitatively predict the latent heat of vaporization.…”