.94 



Mr. J . Kam on Molecular Attraction and 



Acetic acid 



o 2 h 4 o 2 . 



Amyl formate ... 



C 6 H ]2 2 . 

 Benzene 



6 H 6 . 

 Ethyl acetate 



C 4 H s 2 . 

 Ethyl butyrate ... 



C 6 H 12 2 . 

 Ethyl isobutyrate 



c 6 h 12 o 2 : 



Ethyl propionate 



C 5 H 10 O 2 . 

 Isobutyl acetate... 



Isobutyl i'ormate 



? 5 H 10 O 2 . 

 Methyl acetate ., 



C 3 H 6 2 . 



Methyl butyrate 



Methyl propionate 



C,H B 2 . 

 Methyl valerate .... 



Propyl acetate 

 C 5 H 10 O 2 . 



Propyl chloride 

 C3HXL 



Propyl formate 

 C 4 H 8 2 . 



N 2 



SO. 



N 2 



O.. 



{ 



Pc 



Expernt. 



57-11 



34-12 



47-90 



39-65 



30-24 



30-13 



33-86 



31-40 



38-29 



47-54 



36-02 



39-88 



31-50 



34-80 



49-00 



42-70 



77-50 



78-90 



33-00 

 35-33 



50-00 

 50-8 



Expernt. 



0066 



01710 



00981 



01222 



01744 



01749 



01482 



01717 



01472 



00960 



01455 



M. 



60 

 116 



78 



88 

 116 

 116 

 102 

 116 

 102 



74 

 102 



X = 4: 



.v c 2 



M 2 ' 



2-765 



.10-° 



2-966 



• „ 



3031 



>» 



3-058 



j> 



2-798 



• 1, 



2-740 



55 



01224 



88 



01728 



116 



01464 



102 



00982 



78-45 



01203 



88 



00436 



44 



00587 



64 



004603 



28 { 



004042 



32 { 



2-870 



2-752 . 



3-186 . 



3-201 . 



2-638 . 



3085 . 



2-796 . 



2-868 . 



3071 . 



3-048 . 



3-044 . 



2-655 . 



3-568 . 



3-784 . 



2-8657 . 

 2-9997 . 



The correspondence of the two values thus calculated in 

 completely independent manner is striking, as the last two 

 columns o£ Table IV. show. Gases with T c <273 vary; but 

 for those we had equation {22 c), 



c -x v XAV 



