Table 234 (continued). 



215 



LATENT HEAT OF VAPORIZATION.* 



Substance, formula, and 

 temperature. 



/^ total heat from fluid at o° to vapor at f 

 r =■ latent heat at f. 



Authority. 



Acetone, 

 CsHeO, 



— 3° to 147°. 



Benzol, 

 CeHe, 



7° to 215° 



Carbon dioxide, 



CO2, 



— zf to 31°. 



Carbon disulphide, 



CS2, 



— 6° to 143°. 



Carbon tetrachloride, 



ecu, 



8° to 163°. 



Chloroform, 



CHCI3, 

 — 5° to 159°. 



Nitrogen, N. 



Nitrous oxide, 

 — 20° to 36°. 



Oxygen, O. 



Sulphur dioxide, 



SO2, 



0° to 60°. 



Water, H^O. 



/= 140.5 + 0.36644/ — 0.000516/2 



I = 139-9 + 0.23356 / + 0.00055358 /2 



r = 139.9 — 0.27287 /+ 0.0001571 /2 



/= 109.0 -j- 0.24429/ — 0.0001315/2 



r2= 1 18.485 (31 — /) — C.4707 (31 — /2) 



7^90.0 + 0.14601 1- 

 7^89.5 -j- 0.16993/- 

 r = 89.5 — 0.06530 / - 



/= 52.0 + 0.14625/- 

 /= 51.9 -1- 0.17867/- 

 r= 51.9 — 0.01931 /• 



7 = 67.0 4- 0.1375/ 

 /=67.o + 0.14716/- 

 r = 67.0 — 0.08519 / - 



r= 68.85 — 0.2736 T 



-0.000412/2 



• 0.0010161 /2 4" 0.000003424 /8 



• 0.0010976 /2 -j- 0.000003424 fi 



•0.000172 /2 



- 0.0009599 fi + 0.000003733 f' 



■ 0.0010505 /2 -j- 0.000003733 /3 



■ 0.0000937 /2 



■ 0.0001444 /2 



''^131-75 (36.4 — ^)— 0.928 (36.4 — 7)2 



r = 60.67 — 0.2080 T 



r = 91.87 — 0.3842/— 0.000340/2 



r= 94.210 (365 —/) 0-81249, 30° — 100° 



r = 538.46 — 0.6422 (/ — 100) - 0.000833 (/— 100)2 



ioo°-i8o° 



'■=539-66 — 0.718 (/- 100), I20°-l80° 



Regnault. 

 Winkelmann. 



Regnault. 



Cailletet and 

 Mathias. 



Regnault. 

 Winkelmann. 



Regnault. 

 Winkelmann. 



Regnault. 

 Winkelmann. 



Alt. 



Cailletet and 

 Mathias. 



Alt. 



Mathias. 



Henning. 



Quoted from Landolt & Bornstein's " Phys. Chem. Tab," 



Smithsonian Tables. 



