NEW LAW IN THERMOCHEMISTRY 



27 



Compound. 



Diethjlamine 



Trimethjlamine , 



Triethjlamine 



Allylainine , 



Aniline 



Pyridine 



Piperidine 



Hjdiocjanic acid 



Cyanogen 



Acetonitrile 



Propionitrile 



Hydrogen sulphide.... 



Methyl mercaptan , 



Ethyl mercaptan 



Methyl sulphide , 



Ethyl sulphide 



Methyl sulphocyanide, 



Methyl mustard oil 



Allyl mustard oil 



Thiophene 



Heat of Combustion, Thomsen. 

 H3O Iviquid. HjO Gas 



Dimethyl'ether 



Methyl ethyl ether 



Diethyl ether 



Methyl allyl ether 



Diallyl ether 



Methyl propargyl ether 



Methylal 



Methyl orthoformate... 



Ethylene oxide 



Anisol 



Methyl alcohol 



Ethyl alcohol 



Propyl alcohol , 



Isopropyl alcohol 



Isobutyl alcohol , 



Trimethyl carbinol 



Isoamyl alcohol 



Dimethyl ethyl car- 

 binol 



Allyl alcohol 



Propargyl alcohol 



Ethylene glycol 



Phenol ." 



Acetic aldehyde 



Propionic aldehyde.... 

 Isobutyric aldehyde.... 



Dimethyl ketone 



Methyl propyl ketone. 



Formic acid 



Acetic acid 



Propionic acid 



Acetic anhydride 



Methyl formate 241210 



734500 

 582630 

 1052380 

 531280 

 838470 

 675070 



833790 

 158620 

 259620 

 312140 

 471450 

 136710 

 298810 

 455650 

 457350 

 772170 

 398950 

 392060 

 675360 

 610640 



349360 

 505870 

 659600 

 627200 

 911100 

 603830 

 476080 

 599180 

 312550 

 936300 



182230 

 340530 

 498630 

 493320 

 658490 

 641340 

 820070 



810450 

 464760 

 431 100 

 29S110 

 768760 



281900 

 440720 

 599900 

 437250 

 754190 

 69390 

 225350 

 386510 

 460070 



677173 

 535726 

 974207 



494799 

 801989 

 649012 



776463 

 153408 

 259620 

 296505 

 445392 

 126287 

 277967 

 424381 

 426081 

 720055 

 383315 

 376425 

 649302 



589794 



318091 

 464178 

 607485 

 585508 

 858985 

 572561 

 434388 

 547065 

 291704 

 894608 



161384 

 309261 

 456938 

 451628 

 606375 

 589225 

 757532 



747912 



433491 

 410254 

 266841 

 737491 



261054 

 409451 

 558208 

 405981 

 702575 

 58967 

 204504 



355241 

 428801 



220364 



Calculated 



671628 

 526971 



960945 

 506304 

 809398 

 664740 

 768067 



I 5499 I 

 261763 

 299649 



444308 

 I 3088 I 

 275540 

 420198 

 420198 



709515 

 3823 I I 

 3823 I I 

 650963 

 59241 1 



3 I 6871 

 461529 

 606188 

 585522 

 854174 

 564857 

 440864 



564857 

 296205 

 888616 



J 65324 

 309982 

 454641 

 454641 

 599299 

 599299 

 743958 



743958 

 433975 

 4'33io 

 28242S 

 737069 



261763 

 40642 1 

 551080 

 406421 

 695738 

 61996 

 206655 



351313 

 420198 



220432 



Percentage 

 Difierence. 



—0.83 

 -1.65 



-1.38 

 + 2.32 

 +0.92 

 + 2.42 

 — 1.09 



+ I-03 

 +0.82 

 + 1.06 

 — 0.24 



+3.63 

 —0.88 



—0.99 

 —^•39 

 —1.48 

 — 0.26 

 + 1.56 

 +0.25 

 +0.45 



-0.38 



—0.55 

 — 0.21 

 +0.01 

 — 0.56 

 —1-37 

 + 1.49 

 +3-25 

 + 1-54 

 — 0.67 



+2.44 

 +0.23 

 —0.50 

 +0.67 

 — 1.18 

 + 1.71 

 —1.82 



—0.55 

 +0.1 1 



+0.74 

 +5.84 

 —0.06 



+0.27 



—0.74 

 — 1.29 

 +0.1 1 

 — 0.91 

 +5.14 

 + 1-05 

 — 1. 12 

 —2.04 



+0.03 



Th cm sen's 

 Variation. 



0.40 



0.84 

 0.36 

 0.38 

 O.II 

 O.IO 



0.45 

 0.55 

 0.35 

 0.37 

 0.53 



0.09 

 0.0 1 



0.59 

 0.08 

 0.05 

 0.55 



0.04 



0.47 



0.72 

 0.17 



0.63 



0.39 

 0.47 



0.21 

 0.61 

 0.07 



O.II 



0.18 



0.69 



0.45 



0.24 



0.48 



0.23 



0.18 

 0.13 



0.09 



0.99 



1. 01 



O.II 



0.29 



0.34 



0.23 



0.59 

 0.51 



0.12 

 0.81 



0.19 



0.78 

 0.45 



1.08 



