Evaporation and Dissociation, 



Table VI. 

 Read and Smoothed Values of b, and Values of a. 



449 



Vol. 



b, read. 



b, smoothed. 



log b. 



a. 



c. c. 

 30 



523 



52-5 



1-72016 



2877 



25 



633 



64-0 



1-80618 



4024 



20 



81-9 



82-0 



1-91381 



6256 



15 



113-85 



114-5 



2-05881 



10990 



12 



1500 



149-9 



2-17580 



17103 







188-5 



2-27531 



24718 



8 



255-0 



252-1 



2-40175 



39120 



7 



300-0 



302-0 



2-48001 



50970 



6 



368-1 



373-0 



2-57171 



68877 



5 



472-3 



475*5 



2-67715 



96008 



4-5 



553-7 



548-5 



2-73918 



116230 



4-0 



654-0 



638-0 



2-80482 



141525 



35 



750-0 



759-5 



2-88053 



176860 



30 



933-6 



936-5 



2-97151 



229420 



Table VII. 



Calculated Pressures on Isothermal Curves, at definite 

 volumes. 





Temperature. 



Vol 







0°. 



6°. 



13°-1. 



21°-5. 31°-1. 



32°-5. 



35°-5. 



48°-l. 



64°. 



100°. 



c. c. 



mm. 



mm. 



mm. 



mm. 



mm. 



mm. 



mm. 



mm. 



mm. 



mm. 



30 



11456 



11771 







13088 







13981 



14816 



16706 



25 



13448 



13832 







15439 







16526 



17544 



19848 



20 



16130 



16622 





... 



18680 







20074 



21378 



24330 



15 



20269 



20956 







23830 







25776 



27597 



31719 



12 



23719 



24719 



25783 



27043 



28482 





29140 



31030 j 33413 



38810 



10 



26742 



27873 



29212 



30796 32605 





33433 



35809 i 38806 



45592 



8 



29731 



31244 



33036 



35155 i 37576 



37928 



38684 



41862 ! 45872 



54952 



7 



31476 



33288 



35433 



37971 i 40870 



41291 i 42197 



46003 ! 50800 



61680 



6 



32973 



35190 



37843 



40973 44553 



45073 46193 50893 ' 56820 



70250 



5 



33802 



36652 



40032 



44032 j 48592 



49262 j 50682 ! 56672 64232 





4-5 



33510 



36800 



40700 



45310 ; 50570 



51340 52980 59890,68620 





4-0 



32645 



36475 



41005 



46365 1 52495 



53385 55295 63335 73485 





3-5 



30480 



35040 



40440 



46820! 54110 



55170 57440 : 67020 







3-0 



26240 



31860 



38520 



46380 ! 55370 



56680 59620 71290 







It will be seen that the highest calculated pressure is about 

 73,500 millim. Andrews gives measurements at much higher 

 pressures ; but these are few in number and uncertain, and 

 the correction for the compressibility of air is moreover 

 unknown. Hence it was impossible to make use of them in 

 determining the values of b. 



On reference to Andrews's paper (Phil. Trans. 1876, p. 435) 

 Phil. Mag. S. 5. Vol. 23. No. 144. May 1887. 2 H 



