TABLE 234 (continued^. 



215 



LATENT HEAT OF VAPORIZATION.' 



Substance, formula, and 

 temperature. 



1= total heat from fluid at o to vapor at t. 

 r= latent heat at/ . 



Authority. 



Acetone, 

 C 3 H 6 0, 



Benzol, 

 C 6 H 6 , 

 7 to 215. 



Carbon dioxide, 

 CO 2 , 



25 to 31. 



Carbon disulphide, 

 CS 2 , 



6 to 143. 



Carbon tetrachloride, 



ecu, 



I 8 to 163. 



Chloroform, 



CHC1 8 , 

 -5 to 159. 



Nitrogen, N. 



Nitrous oxide, 

 N 2 0, 



20 tO 36. 



Oxygen, O. 



Sulphur dioxide, 



SO 2 , 

 o to 60. 



Water, H 2 O. 



/ = 140.5 -f 0.36644 1 0.000516 t z 

 1= 139.9 -j- 0.23356 / -f- 0.00055358 t 2 

 r= 139.9 0.27287 t -j- 0.0001571 t 2 



1= 109.0 + 0.24429 1 0.000131 5 fl 



118.485 (31 t) 0.4707 (31 f 2 ) 



1 = 90.0 + o.i 460 1 1 0.000412/2 



/ = 89.5 -f 0.16993 / 0.0010161 /2 + 0.000003424 fl 



r = 89.5 0.06530 / 0.0010976 f 2 -j- 0.000003424 t* 



/= 52.0 + 0.14625 1 0.000172/2 



/= 51.9 + 0.17867 / 0.0009599 fl + 0.000003733 /" 



r = 51.9 0.01931 / 0.0010505 f 2 + 0.000003733 fl 



7=67.0 + 0.1375 t 



i= 67.0 + 0.14716 1 0.0000937 & 



r = 67.0 0.08519 / 0.0001444 f 2 



r =68.85 0.2736 T 



r 2 = 131.75 (36.4 ^ 0.928 (36.4 



r = 60.67 0.2080 T 



r = 91 .87 0.3842 / 0.000340 fl 



r= 94.210 (365 ' 81249 , 30 100 



r= 538.46 0.6422 (/ 100) 0.000833 ( f ~~ loo) 2 , 



ioo-i8o 

 r= 539.66 0.718 (/ 100), I20-i8o 



Regnault. 

 Winkelmann. 



Regnault. 



Cailletet and 

 Mathias. 



Regnault. 

 Winkelmann. 



Regnault. 

 Winkelmann. 



Regnault. 

 Winkelmann. 



Alt. 



Cailletet and 

 Mathias. 



Alt. 



Mathias. 



Henning. 



* Quoted from Landolt & Bornstein'i " Phys. Chem. Tab." 



SMITHSONIAN TABLES. 



