LATENT HEAT OF VAPORIZATION. 



Table 213. 



Substance, formula, and 

 temperature. 



/= total heat from fluid at o° to vapor at f. 

 r= latent heat at t'\ 



Acetone, 



CsHcO, 



— f to 147= 



Benzene, 



CcHg, 

 7° to 215°. 



Carbon dioxide, 



CO2, 



— 25° to 31°. 



Carbon disulphide, 



CSo, 



— 6° to 143°. 



Carbon tetrachloride, 



CCI4, 



8° to 163°. 



Chloroform, 



CIICI3, 

 — 5° to 159°. 



Nitrous oxide, 



N2O, 

 — 20° to 36°. 



Sulphur dioxide, 



SO2, 



0° to 60°. 



/= 140.5 + 0.36644/ — 0.000516/2 

 ^ = 1 39-9 + 0.23356 / + 0.0005535S fi 

 r^ 139-9 — 0.272S7 /-f 0.0001571 fi 



/= 109.0 -f- 0.24429/ — 0.0001315/2 



r2= 1 18.485 (31 - /) - 0.4707 (31 - 1-) 



/= 90.0 -{- 0.14601 1- 

 / = 89.5 + 0.16993 /- 

 r = 89.5 — 0.06530 / - 



/= 52.0 + 0.14625/- 

 /= 51.9 + O.17S67 /- 



;-:= 51.9 0.01931 t- 



/ = 67.0 + 0.1375/ 



/ = 67.o + 0.14716/- 

 ^ = 67.0 — 0.08519/- 



• 0.000412 /■- 



•0.0010161 /-+ 0.000003424/8 



■ 0.0010976 /'- + 0.000003424 fi 



■0.000172/2 



- 0.0009599 /■- + 0.000003733 /" 



- 0.0010505 /'- + 0.000003733 fi 



■ 0.0000437 /2 

 ■0.0001444/- 



r'^ 13175 (36-4 — ^) — 0-928 (36.4 — /)2 



r = 91 .87 — 0.3842 / — 0.000340 fi 



Authority. 



Regnault. 

 Winkelmann. 



Regnault. 



Cailletet and 

 Matbias. 



Regnault. 

 Winkelmann. 



Regnault. 

 Winkelmann. 



Regnault. 

 Winkelmann. 



Cailletet and 

 Mathias. 



Mathias. 



* Quoted from Landolt and Boemstein's " Phys. Chem. Tab." p. 350. 

 Smithsonian Tables. 



205 



