﻿56 
  W. 
  P. 
  White 
  — 
  Specific 
  Heat 
  Determination. 
  

  

  there 
  is 
  usually 
  no 
  perceptible 
  difference 
  in 
  the 
  amount 
  

   of 
  irregularity 
  between 
  empty 
  and 
  loaded 
  container, 
  

   though 
  the 
  quantity 
  of 
  heat 
  was 
  nearly 
  or 
  quite 
  ten 
  times 
  

   as 
  great 
  in 
  one 
  case 
  as 
  in 
  the 
  other. 
  This 
  seems 
  fairly 
  

  

  Table 
  I. 
  

  

  Average 
  accidental 
  variation, 
  in 
  calories, 
  of 
  the 
  heat 
  determined 
  at 
  various 
  

  

  temperatures. 
  

  

  With 
  the 
  

   from 
  2 
  to 
  8 
  

   of 
  2 
  each. 
  

  

  empty 
  containers 
  the 
  number 
  of 
  determinations 
  in 
  a 
  series 
  runs 
  

   , 
  averaging 
  3-3. 
  With 
  the 
  full 
  charges 
  most 
  of 
  the 
  series 
  were 
  

  

  100 
  ( 
  

  

  Mean 
  

  

  total 
  

  

  heat 
  

  

  300° 
  

  

  Mean 
  

  

  total 
  

  

  heat 
  

  

  500° 
  

  

  Mean 
  

  

  total 
  

  

  heat 
  

  

  Empty 
  

   Container 
  

  

  0-028 
  

   0-3 
  

  

  287 
  

  

  1-9 
  

   1-7 
  

   0-2 
  

  

  460 
  

  

  2-2 
  

   21 
  

   11 
  

   1-6 
  

   2-9 
  

  

  •6 
  

  

  •5 
  

  

  940 
  

  

  Charges 
  

  

  0-2 
  

  

  0-5 
  

  

  0-8 
  

  

  0014 
  

  

  0-9 
  

  

  0-5 
  

  

  0-2 
  

  

  0-2 
  

  

  0-2 
  

  

  1160 
  

  

  11 
  

  

  •7 
  

   1-4 
  

   1-6 
  

  

  •8 
  

  

  4580 
  

  

  1-5 
  

   1-6 
  

  

  •8 
  

   3-8 
  

   2-6 
  

  

  8210 
  

  

  700' 
  

  

  Mean 
  

  

  total 
  

  

  heat 
  

  

  900 
  ( 
  

  

  Mean 
  

  

  total 
  

  

  heat 
  

  

  1100° 
  

  

  Mean 
  

  

  total 
  

  

  heat 
  

  

  1300° 
  

  

  Empty 
  

   Container 
  

  

  2-9 
  

  

  10 
  

  

  2-5 
  

  

  •4 
  

  

  1350 
  

  

  1-7 
  

   3- 
  

  

  1800 
  

  

  5-9 
  

  

  •3 
  

  

  10 
  

  

  7-5 
  

  

  .2200 
  

  

  11 
  

  

  4-9 
  

  

  Charges 
  

  

  31 
  

   4-6 
  

  

  •8 
  

   •6 
  

   •4 
  

  

  12600 
  

  

  1-2 
  

   2-3 
  

   3-7 
  

   5-5 
  

   1-6 
  

   2-9 
  

  

  17250 
  

  

  •4 
  

  

  7-7 
  

   4-4 
  

   9-5 
  

  

  2-2 
  

  

  22000 
  

  

  7-7 
  

   2-9 
  

  

  conclusive 
  against 
  the 
  supposition 
  that 
  appreciable 
  acci- 
  

   dental 
  errors 
  often 
  came 
  from 
  either 
  the 
  charge 
  tempera- 
  

   ture 
  measurement 
  or 
  the 
  calorimetric 
  determination. 
  

   (3) 
  The 
  discrepancies 
  do 
  show 
  a 
  tendency 
  to 
  vary 
  with 
  

   the 
  temperature 
  of 
  the 
  drop, 
  that 
  is, 
  with 
  the 
  heat 
  of 
  the 
  

  

  