A series of chemical problems with key for use in colleges and schools / by T.E. Thorpe. Rev. and enl. by W. Tate ; with a preface by H.E. Roscoe.

  • Thomas Edward Thorpe
Date:
1891
Catalogue details

Licence: Public Domain Mark

Credit: A series of chemical problems with key for use in colleges and schools / by T.E. Thorpe. Rev. and enl. by W. Tate ; with a preface by H.E. Roscoe. Source: Wellcome Collection.

    34/160 (page 22)
    II = height of Ijar. and t = the temp, at which P' is found. IP = height of bar. and T = the reduced temp, of tlie bath at tlie time of sealing or closing the bulb. k = the coefficient of cubical expansion of the material of the bulb. o'oo367 = the coefficient of expansion at constant pressure of a gas. 'I'hen P' 0-0012932. (/'- w) 7/ f H—, - — - — r—-— = the weiglit of (i -f-0-00367 ./g 760 ^ \apour taken for (/' — 7') is tlie \ olume occupied b)- the air disjilacetl liy the va]Knir or gas and the weight of the disiilaced air 0-0012932. (F - li) II (i + 0-00367. /). 760 ’ (As V is generally small, any small differences between the pressure and temperature under which it is measured and II and t may be neglected.) and the volume occupied by this weight at IP and T is [I + 000367. y (i + k T) - V. 7-q: 0-00367“/] standard conditions [f(i ^kT) V. I + 0-00367. 7'n IP I +0-00367. /J-760.(i + 0-00367. 7') hence the rel. dens, referred to air as unit)- is given by the formula _ 0-0012932. (/' - 7'). 7/ ' (i + 0-00367 /). 760 r I +0-00367. 7-1 IP L^(' ~ I +0-00367. /J-760. (1+0-00367. 7'). 0-0012932 if hydrogen be taken as unity 0-0012932 is rc|)laccd by 0-0000S95S the weight of I c.c. of hydrogen in grams.