Relation to Pressure and Temperature. 



501 



Table 22. 

 Mean exponential constants, v/ F=/w (1 + 9#/>)V9. 



Substance. 



e 



29 



tf xlO 6 



#o xlO 6 



V*. 



Ether 



165 



194 



6060 



^o=100 



65 



226 



282 



4420 



B. P.=34° 



100 



343 



497 



2910 





185 



1005 



10060 



990 





310 



34250 



* 



290 



Alcohol 



28 



89 



101 



11240 



j?o=150 



65 



115 



136 



8700 



B. P. = 78° 



100 



158 



201 



6330 





185 



331 



598 



3020 





310 



13830 



* 



720 



Palmitic 



65 



91 



93 



10750 



Acid 



100 



102 



104 



9610 



i?o=20 



185 



160 



165 



6060 



B. P. = 350° 

 M. P. = 62° 



310 



330 



351 



285 



Para 



28 



59 



60 



16670 



toluidine 



65 



68 



69 



14490 



Po=20 



100 



87 



88 



11360 



B. P. = 198° 

 M. P.=43° 



185 



138 



142 



7040 





310 



392 



422 



2370 



Diphenyl- 



65 



65 



65 



15380 



amine 



100 



69 



69 



14490 



^0 = 



185 



no 



110 



9090 



M. P. = 54° 

 B. P. = 310° 



310 



213 



213 



4690 



Caprinic 



30 



76 



76 



13160 



acid 



• 65 



95 



97 



10310 



l?o = 20 

 M. P.=30° 



100 



119 



121 



8260 



B. P.=270° 



185 



200 



207 



4830 



Benzoic acid 











^o=20 

 M. P.=121° 



185 



138 



141 



7090 



B. P.=249° 











Paraffine 



64 



88 



|89 



11240 



i)o=20 



100 



111 



114 



8770 



M. P. = 55° 



185 



178 



184 



5430 



Substance. 



Paraffine 

 • 2>o=10 



a Naphtol. 



^)o=20 



M. P. = 94° 



B. P.=280° 



Thymol. 



p =20 



M. P. = 53° 



B. P. = 233° 



Monobrom 



camphor 



2>o=20 



M. P.=76° 



B. P.=274° 



Azo- 



Benzol 



j?o=20 



M. P. = 68° 



B. P.=293 



Vanilline 



J9o=20 



M. P.=80° 

 B. P.=285° 

 JNaphtha'ne 



i>o=50 



M. P. = 80° 



B. P. =2 15° 



^Monochlor- 



acetic acid 



p =0 

 M. P.=62° 

 B. P.=188° 



e 



tf xlO 6 



310 



366 



65 





100 





185 





100 



62 



185 



85 



#o X 10« l/# 



28 

 64 



100 



185 

 310 



100 

 185 



100 

 185 



100 

 185 



100 

 153 



185 



65 

 f85 



65 



74 



96 



161 



448 



83 

 123 



79 

 131 



58 

 92 



93 

 115 

 133 



392 2550 

 •f-100 10000 



118 

 186 



62 



87 



66 

 75 



97 



166 



487 



85 

 126 



8470 

 5380 



16130 

 11490 



15150 

 13330 



10310 



6020 

 2050 



11760 



7940 



80 12500 

 134 7460 



58 

 93 



97 

 121 

 141 



72 

 142 



17240 

 10750 



10310 

 8260 

 7090 



13900 

 7040 



31. Subsidiary inferences. — If l/# , the resistance to com- 

 pression, be constructed as a function of temperature, 0, it 

 will be seen that except in the extreme cases of ether and 

 alcohol, l/# decreases nearly proportional to 6, at a rate 

 nearly the same for all the substances examined. Again if the 

 values of # at melting points and boiling points be found, no 

 perspicuous relation is discernable. This substantiates the 

 remarks of § 27. Turning to tables 4 to 14 it appears by con- 

 sulting the difference columns, that the errors of v / V are 



* Imaginary. Reciprocals of # are taken. 

 X Results of an older method. 



f Solidification. 



