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.

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    CORRECTION OF THE VOLUMES OF GASES FOR TEMPERATURE AND PRESSURE. Laiu of Charles ; — Clases under constant pressure expand „l.j part of their volume at 0° C. for every increase in temperature of 1° C. Thus 273 volumes of any gas at become 274 „ „ )i -7 5 I) )) )) -76 » )) » 273 + / „ 0° C. 1° C. 2° c. C. f This fraction 0^0 or tho slightly more accurate decimal fraction o‘oo3665, is termed the coeffidcjjt of expansion of gases. EXAMPLES. I. 10 c.c. of a gas are measured at 15'’ C. What volume will the gas occupy at 150° C. ? 273 + 15 : 273 + 150 :: 10 : -v ^ _ 423 X 10 288 = 14 69 c.c. 2. 100 c.c. of hydrogen are measured at 100° C. How many cubic centimetres will the gas occupy at - 100 C. ? 273 + 100 ; 273 - 100 :: too :x i- = L73 ^ 373 46-37 c.c. 3. What will be the volume at 25° C. of 252 c.c. of oxygen measured at 15 C. ? I + H5 X 0-003665) : I + (25 X 0-003665) :: 252 : .1- > 054975 : U091625 252 ; x 1091625 X 252 1-054975 X = 260-75 o.c.