PHYSICAL CHARACTERS OP MIXTURES ADD SOLUTIONS. 
347 
Water and Prussic Acid *. 
C N H one part. 
H 0 O one part. 
Specific heat of prussic acid . . . ’2940 
„ „ „ mixture found . * -8317 
„ „ „ „ calculated . '6470 
In the formation of 5 grins, of this mixture are absorbed, at a temperature of 
0 C., 2 6* 61 units. 
14 C., 40-54 „ 
Difference 13-93 „ 
To heat 5 grms. of the mixture from 0° to 14° requires 58-219 units. 
„ 2-5 „ of water requires 35-00 units. 
„ 2-5 „ prussic acid requires 10 - 29 ,, 
45-29 45-290 „ 
Difference 12-929 
Etkylic Alcohol and Bisulphide of Carbon *. 
C S 62 "3 parts. 
C 2 H 6 0 37-7 „ 
Specific heat of bisulphide . . . . -2381 
„ „ „ alcohol .... "5790 
,, „ „ mixture found . . -3903 
„ „ „ „ calculated . -3666 
In the formation of 5 grms. of this mixture are absorbed, at a temperature of 
0 C., 5-850 units. 
21-9 C., 10-925 „ 
Difference 5-075 ,, 
To heat 5 grms. of the mixture from 0° to 21°-9 requires 42-735 units. 
„ „ the constituents separately from 0° to 2 1°-9 „ 40-142 „ 
Difference 2*593 „ 
Solutions of Potassium Chloride. 
K Cl one molecule, or 12T2 per cent. 
H 2 O thirty molecules, or 87-88 „ 
Specific heat of solution, according to Thomson, -850. 
* Bussy and Buignet, Ann. Chem. Phys. [4], 5. 
3 B 
MDCCCLXXII. 
