﻿and 
  Chemical 
  Reactions 
  in 
  Heterogeneous 
  Systems. 
  557 
  

  

  No. 
  

  

  h'. 
  

  

  c. 
  

  

  V. 
  

  

  C-C,. 
  

  

  ar. 
  

  

  A. 
  

  

  

  

  Speed 
  of 
  

  

  solution 
  of 
  benzoic 
  aci 
  

  

  d 
  in 
  water 
  at 
  l°-5 
  C. 
  

  

  1 
  ... 
  

  

  Oil 
  

  

  •0436 
  

  

  

  6-2494 
  

  

  

  

  

  

  

  

  1490 
  

  

  

  23-75 
  

  

  1-326 
  

  

  9th 
  May, 
  1907. 
  

  

  

  044 
  

  

  •1742 
  

  

  

  6-1188 
  

  

  

  

  

  

  

  1480 
  

  

  

  19-25 
  

  

  1-558 
  

  

  T=274°-5. 
  

  

  C 
  at. 
  equilibrium 
  at 
  l°-5 
  C. 
  

  

  3 
  ... 
  

  

  075 
  

  

  •2970 
  

  

  1470 
  

  

  5-996 
  

  

  30-0 
  

  

  1-881 
  

  

  4 
  .. 
  

  

  182 
  

  

  •5228 
  

  

  

  5-7702 
  

  

  

  

  =0-1689 
  gr. 
  in 
  100 
  cc. 
  of 
  

   water; 
  i. 
  e. 
  10 
  cc. 
  of 
  the 
  

   sat. 
  sol. 
  =6-293 
  cc. 
  of 
  («). 
  

  

  5 
  ... 
  

  

  211 
  

  

  •8356 
  

  

  1460 
  

   1450 
  

  

  5-4574 
  

  

  500 
  

  

  580 
  

  

  1-627 
  

   1-377 
  

  

  6 
  ... 
  

  

  285 
  

  

  1-128 
  

  

  

  5-1650 
  

  

  

  

  w 
  = 
  l'29 
  rev. 
  per 
  minute. 
  

   Correction 
  for 
  water 
  = 
  

  

  I 
  ... 
  

  

  898 
  

  

  1-584 
  

  

  1440 
  

  

  4-709 
  

  

  600 
  

  

  2-218 
  

  

  

  

  

  1430 
  

  

  

  450 
  

  

  1-225 
  

  

  045 
  cc. 
  

  

  8 
  ... 
  

  

  44o 
  

  

  1-762 
  

  

  

  4^531 
  

  

  

  

  Volume 
  of 
  pipette 
  = 
  10 
  cc. 
  

  

  

  

  

  1430 
  

  

  

  40-0 
  

  

  1-487 
  

  

  9 
  ... 
  

  

  492 
  

  

  1-948 
  

  

  

  4-345 
  

  

  

  

  

  

  

  

  

  Average 
  ... 
  

  

  1-587 
  

  

  

  

  

  

  

  

  

  

  

  l/ariaiUm. 
  of 
  iJte 
  velocU^ 
  CorusCant 
  of 
  molecular 
  

   reajdions 
  u^U/i 
  tinyserabju-e 
  at 
  a, 
  corvsiixnt 
  

   speed 
  cf 
  Stirrer 
  ( 
  ISO 
  rev. 
  prMui^ 
  jp_^. 
  

  

  E-2.85f 
  

  

  Influence 
  of 
  Temperature 
  upon 
  the 
  Velocity 
  Constant 
  A 
  of 
  

   Molecular 
  Reactions. 
  

  

  AVe 
  find 
  

  

  and 
  

  

  d 
  In 
  K 
  A' 
  ^ 
  . 
  „ 
  _, 
  . 
  d 
  In 
  K 
  A' 
  

  

  lnK= 
  — 
  + 
  const. 
  

  

  InKr. 
  — 
  InK'i 
  

  

  TT 
  

  

  31° 
  

   304 
  

   4-524 
  

  

  t 
  = 
  l°-5 
  17^-5 
  

  

  T 
  = 
  274-5 
  290-5 
  

  

  A 
  = 
  1-587 
  2-851 
  

  

  It 
  follows 
  from 
  this 
  : 
  

  

  2^851 
  _ 
  A^xlG 
  

   1-587 
  274-5x290-5 
  

   4^524 
  _ 
  A' 
  X 
  13-5 
  

   2-851 
  290^5x304 
  

   5-756 
  ^ 
  A' 
  X 
  9 
  

   4-524 
  304x313 
  

   9-940 
  A' 
  X 
  20 
  

  

  40^ 
  

   313 
  

   5-756 
  

  

  60° 
  

   333 
  

   9-946 
  

  

  In 
  

   In 
  

   In 
  

  

  '"5-756 
  333x313 
  

  

  and 
  A' 
  = 
  2920 
  : 
  

   and 
  A' 
  = 
  3020; 
  

   and 
  A' 
  = 
  2550; 
  

   and 
  A' 
  = 
  2850. 
  

  

  