244 Latent Heat and Surface Energy. 



Table II. 



pV 1 Lj 



Substance. P 2 T°C. «. dxl °* L ^ T L °C. V ? 



ergs X cm. P cms. cals. ^i cals. cals. 



Oxygen 13-23 1 -183 llo8 a 321 1724 3 -188 276 287 



Nitrogen 8"94 l -196 -850 2 3'50 1210* -196 201 202 



Argon 11-00 1 -186 1104 1 3'2l 1284 5 -186 226 214 



N 2 26-3 -89-3 1-226 371 3658 G -89 606 609 



NH 3 4175 -29 -672 279 5317 -33-5 905 886 



S0 2 33-82 -25 1-509 377 5634 -10 930 939 



CC1 4 28-5 1-632 4-52 8254 • 1422 1375 



20-2 76-4 1-48 ... 6432 761 1106 1072 



CHC1 3 32-5 1-555 4-34 7454 1374 1242 



21-8 61-2 1-408 ... 6307 61 1013 1051 



CS 2 27-3 46 1-22 4-18 5852 46 971 975 



33-9 1-292 ... 6284 1136 1047 



w-hexane 18'54 8'2 -69 4-53 7132 1074 1189 



Benzene 29"2 17'5 -88 4-88 7760 7 20 1263 1293 



207 80-5 -81 ... 6739 SO 1017 1123 



Toluene 195 109 778 4-84 6926 109 1136 1154 



p. Xylene 181 1362 -754 5T6 7777 139 1174 1296 



Mesitylene 15-8 160-5 737 535 7728 163 1145 1288 



Ether 19-2 02 735 4-41 6300 1043 1050 



15-9 34-8 -695 ... 5503 40 914 917 



Methyl acetate 2514 10 "986 403 7865 1170 1311 



Ethyl formate 195 54 "873 409 6166 54 962 1028 



Ethyl acetate 17*2 771 73 431 6768 77 1151 1128 



25-5 -924 ... 8036 5 1342 1339 



Propyl acetate 24'84 10 "891 510 9168* 1327 1445 



Methyl iso-butyrate. 166 91-3 '806 503 6972 91 995 1160 



Aniline 24-36 185 -875 470 9190 185 1312 1379 



Chlor-benzene 201 122 -995 4"83 7294 130 1120 1216 



Ethyl iodide 22-11 78-2 1811 4-20 6612 71 1080 1102 



Anisol 19-8 151-7 "865 4-98 7910 151 1182 1319 



Water 75"8 01 100 2-88 10194 1133 1699 



Methyl alcohol 235 -810 313 8703 647 1451 



Ethyl alcohol 23-3 -807 374 9615 850 1603 



Acetic acid 23*5 20 105 4*36 4457 20 734 743 



Chlorine 33-59 -72 219 4-28 4250 -22 532 708 



1 Baly & Donnan, J. C. S. lxxxi. p. 907 (1902). 



2 Dewar, Proc. Eoy. Soc. xv. p. 133. 



3 Mean : Estreicher & Shearer. 



4 Mean : Alt & Shearer, 



5 Nernst, Theor. Chemistry, p. 273. 

 ,; From Troutoirs Rule. 



7 Griffiths & Marshall, Phil. Mag. [5] xivi. p. 1 (1896). 



Considering the simplifying assumptions made, the rela- 

 tionship - 7 - . Y = — 1 fits the facts remarkably well. 

 1 d J 6 J 



