﻿440 
  Br. 
  Gr. 
  W. 
  Todd 
  on 
  Reaction-Velocity 
  Curves 
  for 
  

  

  beiug 
  sucli 
  that 
  a= 
  — 
  J,and 
  the 
  gas 
  B 
  in 
  excess. 
  Examples 
  

   of 
  such 
  reactions 
  are 
  

  

  2H 
  2 
  4- 
  2 
  -> 
  2H 
  2 
  oxygen 
  in 
  excess. 
  

   2CO 
  + 
  2 
  -»2C0 
  2 
  

  

  2NO 
  + 
  2 
  --»2N0 
  2 
  ,, 
  

  

  Now 
  let 
  the 
  volume-change, 
  when 
  neither 
  reactant 
  is 
  in 
  

   excess, 
  be 
  given 
  by 
  

  

  2 
  vols. 
  -f 
  1 
  vol. 
  -> 
  1 
  vol. 
  

  

  i.e. 
  *=-f. 
  

  

  Equation 
  (3) 
  becomes 
  

  

  2 
  

  

  KSH 
  

  

  »x 
  1 
  r~o^ 
  

  

  (l-XJ'Cp-X)** 
  

  

  1 
  f 
  p-2 
  p-X 
  p 
  X 
  \ 
  

  

  -p+2\(p-iy 
  [0 
  % 
  e 
  p(i-X) 
  %-i 
  l-xj 
  ■ 
  

  

  For 
  p—1. 
  

  

  X 
  -2 
  -4 
  -5 
  -6 
  -7 
  -8 
  -9 
  TO 
  

  

  k(£\ 
  t 
  -261 
  -751 
  1-167 
  1-874 
  3-235 
  6666 
  2250 
  oo 
  

  

  X 
  -3 
  -5 
  -6 
  -7 
  -8 
  -9 
  10 
  

  

  k(-) 
  t 
  -358 
  -864 
  1-342 
  2-17 
  3*9tf 
  1004 
  oc 
  

  

  X 
  -3 
  -5 
  -6 
  -7 
  -8 
  -9 
  -95 
  10 
  

  

  kl^j 
  t 
  -214 
  -500 
  -750 
  1-166 
  2-000 
  4'5U0 
  9'500 
  oo 
  

  

  P=3. 
  

  

  X 
  -4 
  -6 
  -7 
  "8 
  -9 
  -95 
  1-0 
  

  

  k(~Yt 
  -218 
  -485 
  -747 
  1*265 
  2'797 
  5830 
  x 
  

  

  p=5. 
  

  

  X 
  -5 
  -7 
  -8 
  9 
  -95 
  '97 
  1-0 
  

  

  k(~\ 
  t 
  -195 
  -444 
  -753 
  1*667 
  3*465 
  5*868 
  x 
  

  

  X 
  -7 
  -8 
  -9 
  -95 
  -97 
  10 
  

  

  kCf) 
  t 
  -281 
  -475 
  1-055 
  2205 
  3*731 
  x 
  

  

  