230 



Table ass. 

 SPECIFIC HEATS OF GASES AND VAPORS- 



Substance. 



Acetone, CsHeO 



Air 



K 

 (( 

 (( 



Alcohol, CaHsOH.!!!!! 



CH3OH.;;!'. ; 



Ammonia 



Argon 



Benzene, CeH^ 



<< <( 



(t II 



Bromine 



Carbon dioxide, CO2 . . . 



U II II 



" monoxide, CO.. 



II II 11 



" disulphide, CS2 . 

 Chlorine 



Chloroform, CHCI3 . . . . 



II II 



Ether, C4H10O 



Helium 



Hydrochloric acid, HCl 

 II 11 II 



Hydrogen 



Range of 

 temp. " C 



Krypton . 

 Mercury . 



sulphide, H2S 



Methane, CH4 . 



Neon 



Nitrogen 



Nitric oxide, NO 



Nitrogen tetroxide, NO2 



Nitrous oxide, N2O . 

 II (I II 



II II i< 

 Oxygen 



Sulphur dioxide, SO 



Water vapor, H2O . . 

 II <i i< 



II i< « 

 Xenon 



26-110 



-30-+10 



0-200 



20-440 



20-630 



20-800 



108-220 



101-223 

 23-100 

 27-200 

 20-90 



34-115 

 3S-180 



116-218 

 83-228 



-28- +7 

 15-100 

 11-214 



23-99 



26-198 



86-190 



16-343 

 27-118 

 28-189 

 69-224 

 25-111 



13-100 

 22-214 

 -28- +9 

 12-198 

 21-100 

 20-206 



18-208 



0-200 

 20-440 

 20-630 

 20-800 

 13-172 

 27-67 

 27-150 

 27-280 

 16-207 

 26-103 

 27-206 

 13-207 

 20-440 

 20-630 

 16-202 

 o 

 100 



Sp. bt. 

 constant 

 pres- 

 sure. 



0.3468 



2377 

 0.2375 

 o. 2366 

 o. 2429 

 0.2430 



0.4S34 



0.4580 

 0.5202 

 0.5356 

 1233 

 o. 2990 



0-3325 

 0.3754 

 0.0555 



1843 

 0.2025 

 o. 2169 



2425 



2426 



0.1596 

 O.II25 



o. 1441 

 o. 1489 



0.4797 



0.4280 

 o. 1940 



0.1867 

 3-3996 



3 ■ 4090 

 3.4100 

 0.2451 



0.5929 



0.2438 

 o. 2419 

 o. 2464 



0.2497 

 0.2317 

 1.62s 

 1. 115 

 0.65 



o. 2262 

 o. 2126 

 o. 2241 



0.2175 



o. 2240 

 o. 2300 



0.1544 

 0.4655 



0.421 



0.51 



Authority. 



Wiedemann. 



Regnault. 



II 



Holborn and 



Austin. 



II 



Regnault. 



Regnault. 



Wiedemann. 



II 



Dittenberger 



Wiedemann. 



II 



Regnault. 



Wiedemann. 



II 



Regnault. 



Strecker. 



Wiedemann. 

 II 



Regnault. 

 Wiedemann. 



Strecker. 

 Regnault. 



Wiedemann. 

 Regnault. 



Regnault. 



Regnault. 



Holborn and 



Austin. 

 II 



Regnault. 

 Berthelot and 



Olger. 



II 



Regnault. 



Wiedemann. 



11 



Regnault. 

 Holborn and 

 Austin. 

 Regnault. 

 Thiesen. 



Range 



of 

 temp. 

 °C 



Mean 

 ratio of 

 specific 



heats. 



Cp/Cv. 



Authority. 



20 

 -79-3 

 -79-3 



o 



500 



53 

 100 

 100 



o 

 100 



o 



20 



60 



99-7 



20-388 



4-1 1 



o 



o 



100 



3-67 



o 



22-78 



99.8 



42-45 



12-20 

 o 

 20 

 100 



4-16 



19 

 310 



11-30 

 19 



o 

 100 



5-14 

 16-34 



78 



94 

 100 



19 



401 1 

 405 

 333 

 828 



399 



133 



134 



256 

 •3172 

 . 2770 

 .667 

 ■ 403 

 -403 

 ■105 



•293 

 •2995 



I • 3003 



1-403 



1-395 



1.205 



1-336 



1. 102 



1-150 



1.029 



1.024 



1.64 



1.389 



1.400 



I . 4080 



1. 419 



1-324 

 1.666 

 1.666 



1. 316 

 1.642 

 1. 41 

 1-405 



1-394 

 I-31 



1. 311 

 I. 272 

 1-324 

 1-3977 



1.256 



1.274 



^■23 



1-305 



1.666 



Moody. 

 Koch, 1907. 



" 200 atm 



II II II 



Fiirstenau. 

 Jaeger. 



Stevens. 



II 



Wiillner. 



II 



Niemeyer. 

 Pagliani. 



Stevens. 

 Strecker. 

 Lummer and 

 Pringsheim. 

 Moody, 191 2. 



Wiillner. 



II 



Beyme. 



Martini. 



Beyme. 



Stevens. 



Miiller. 



Low, 1894. ! 



Mean, Jeans, j 



Strecker. \ 



II 



Lummer and } 

 Pringsheim. I 

 Hartmann. | 

 Capstick. 

 Ramsay, '12. , 

 Kundt and 

 Warburg. 

 Miiller. I 



Ramsay, '12 |; 

 Cazin. 

 Masson. 



Natanson. 



Wiillner. 



Leduc, '98. 

 Lummer and 

 Pringsheim. 



Miiller. 

 Beyme. 

 Jaeger. 

 Makower. 

 Ramsay,' 12. 



Smithsonian Table.« 



