Tables of physical and chemical constants and some mathematical functions / by G.W.C. Kaye and T.H. Laby.

  • G. W. C. Kaye
Date:
[1941]
Catalogue details

Licence: Public Domain Mark

Credit: Tables of physical and chemical constants and some mathematical functions / by G.W.C. Kaye and T.H. Laby. Source: Wellcome Collection.

    121/200 (page 109)
    RECOMBINATION AND DIFFUSION COEFFICIENTS OF RECOMBINATION a a is given below in terms of loooe, where e is the numerical value of the ionic charge : 47 x io~10 in electrostatic units. For air, o = 3320^ = 1 *56 x io~6 cm.3 sec1. Room temp, and pressure. Gas. Air. o. CO, a 3*42,T.; 3*38, Me.; 3*2, L.; 37, H.; 3*32 *,E. 3-38. T. 3'5.T. H, 3-02, T ; 2*94, Me. E., Erikson, P.M., 1909; H., Hendren, P.R,, 1905 ; L., Langevin, A.C.P., 1902; Me., McClung, P.M.) 1902 j T., Townsend, P.T.y 1899. * 170 C., 760 mm. Hg. a IN AIR AND PRESSURE Press, in atmos. . . . o (relative values), L. . 0*2iT •5 0-51 T. 1 -oo L. i-ii L. 3 0-97 L. 0’67L, L., Langevin, ’02. H., Hendren, ’05. T., Thirkill, ’13. Press, in cms. 76 a (absolute values), H. . 3*3 45 2*65 25 2'07 15 175 10 i*55 i*3* 35 1*25 i*i5 1*00 a IN AIR AND TEMPERATURE Air at constant density, (E., Erikson ; P., Phillips, Electrician, 1909.) Temp. °C. . . . -179° -68 12 64 100 155 Temp. 0 C. . . . 15° 100 155 176 a (in terms 1000e),E. 7*5 5-64 3*47 2-31 173 1*38 a (relative values), P. 1 •50 •40 •36 IONIC COEFFICIENTS OF DIFFUSION D Rate of interdiffusion (in cm.2 sec-1) of gaseous ions in dry air : D+ for positive, D for negative ions. (Townsend, Phil. Trans., 1899, 1900.) Ionization D + at 76 cm. D- at 76 cm. Rontgen Rays. •028 •043 and 7 Rays. *032 •043 Ultra-violet light. *043 Point discharge. •0247, *0216 •037, *032 GASES IONIZED BY RONTGEN RAYS Air, C02, and hydrogen at 150 C. and 760 mm. Dry Gas. D+ D- Dry Gas. D + D- Moist Gas. D+ D- Moist Gas. D+ D- Air 02 dried l CaClj •028 •025 •043 •04 co2 Ha ' dried by CaCl2 •023 •123 •026 **9 Air 02 sat. ] with > [h2oJ *032 •029 *035 •036 co2| h2 ' sat. with [h2oJ •024 •128 •025 •142 AIR IONIZED BY /3 AND Y RAYS Press, p. in cms. 77*2 55 40 30 20 Press, p. in cms. 77-2 55 40 30 20 D+ at 15° C. •0317 •042 ■0578 •078 •1 iS D- at 15° C. •0429 0542 •078 •103 i*55 2*45 2*31 2*31 2'34 2*36 pD- „ 3*3 2*98 3*12 3*09 3’1 A.C.P.) Ann. de Chim. et de Phys. ; P.M., Phil. Mag. ; P.R.) Physical Review ; P. T.) Phil. Trans.