KODUCTION. ,j 



Rottetti. Above 100, the values are those calculated by the equations 



Him.* 



Volumes of Liquids. - The volumes of liquids at high temperature*, 

 in-i with the volume at freezing- |>oini, are represented by the 

 equations gi Him: 



6 AMI 445 -10 

 4410-10 



Alcohol .Hi 5 (\ to HKi* C (vol. nt ( 



r-lf 0000738022661 64686001 1" 



+ 0.00001066235r' ; 02SS402 ; 



-0 .00000000248084 21* 2 0660517 1" 



+0.0000000004041357f 06066278-10 



Ether 30 C. to 130 C. (vul.mtQPC.- 



0817-10 

 +0.00000666371* 

 -0 Xn0000034400766l* 

 +040000000083772082P 62H5571 



Carbon bimilphide 30 to 160 C. (vol. at 



r-lfO 00116806601 7 0674636-10 



0001220-10 

 8.7840404-X 



Carbon totraehloride 30 to 160* C. (vol. 



r-1+0 00106718831 741283100-10 



+0 000003565l378f 

 -0 .00000001404028K 

 +0.000000000086182318f 9 W034W JIJ 



Heat of Vaporization. If the heat of the liquid be subtracted from 

 the total heat, the remainder i> railed the heat of vaporization, and is 

 represented by r, so that 



r II - g. 



Internal and External Latent Heat. - The heat of vaporization over- 



.1 pressure, and change- >m liquid to vapor at 



mt temjKTature and pressure. Let the specific volume of the 



saturated vapor be 5, and that of the liquid IK- <r, then the change of 



volume is 5 - o- - ii, on passing from the liquid to the vaporous state. 



k is 



p (s - IT) - fa, 



and the corresponding amount of heat, or the external latent heat, is 



Ap (s - <r) - Apu, 



A being the reciprocal of the nuu hanical equivalent of heat. 

 Ammdu <fe Chim* el * Pkynjm., 1867. 



