﻿498 
  Mr. 
  J. 
  A. 
  Wanklyn 
  on 
  the 
  Physical 
  

  

  For 
  infinite 
  dilution 
  u= 
  1*177, 
  and 
  for 
  solutions 
  of 
  different 
  

   strengths 
  n 
  we 
  get 
  the 
  following 
  values 
  of 
  u 
  : 
  — 
  

  

  n 
  .... 
  01 
  0-2 
  0-5 
  1-0 
  20 
  3-0 
  40 
  

  

  u 
  ,... 
  1-048 
  -982 
  -906 
  -869 
  -827 
  -816 
  -825 
  

  

  If 
  these 
  values 
  of 
  u 
  be 
  substituted 
  in 
  the 
  above 
  formula 
  

   for 
  C/F, 
  and 
  the 
  latter 
  quantity 
  calculated 
  for 
  different 
  states 
  

   of 
  temperature 
  and 
  concentration, 
  it 
  will 
  be 
  found 
  that 
  the 
  

   values 
  so 
  obtained 
  agree 
  very 
  closely 
  with 
  those 
  contained 
  in 
  

   Table 
  X. 
  The 
  average 
  difference 
  is 
  1 
  per 
  cent., 
  and 
  the 
  

   largest 
  deviations 
  occur 
  for 
  the 
  temperatures 
  0° 
  C. 
  and 
  100° 
  C. 
  

  

  The 
  degree 
  of 
  dissociation 
  at 
  different 
  temperatures 
  for 
  

   solutions 
  of 
  constant 
  concentration 
  is 
  given 
  in 
  Table 
  X. 
  ; 
  and 
  

   it 
  is 
  interesting 
  to 
  note 
  that 
  for 
  the 
  stronger 
  solutions 
  at 
  

   least 
  there 
  is 
  a 
  well-marked 
  diminution 
  of 
  the 
  degree 
  of 
  

   dissociation 
  with 
  rise 
  of 
  temperature. 
  

  

  Table 
  X. 
  — 
  Degree 
  of 
  Dissociation 
  at 
  Different 
  Temperatures 
  

   of 
  Solutions 
  of 
  Constant 
  Concentration. 
  

  

  

  

  

  NaOl 
  Solutions. 
  

  

  

  

  Temp. 
  

  

  

  

  

  

  

  

  

  »=0'1 
  

  

  w 
  = 
  0-2 
  

  

  w=0'5 
  

  

  M=10 
  

  

  72 
  = 
  2 
  

  

  n=3 
  

  

  »=4j 
  

   •493 
  

  

  0°C. 
  

  

  •897 
  

  

  •830 
  

  

  •763 
  

  

  •723 
  

  

  •640 
  

  

  •565 
  

  

  10 
  

  

  •892 
  

  

  •838 
  

  

  •756 
  

  

  •696 
  

  

  •614 
  

  

  •535 
  

  

  •470 
  

  

  18 
  

  

  •882 
  

  

  •830 
  

  

  •753 
  

  

  •689 
  

  

  •599 
  

  

  •522 
  

  

  •454 
  

  

  20 
  

  

  •879 
  

  

  •832 
  

  

  •752 
  

  

  •689 
  

  

  •596 
  

  

  •517 
  

  

  •451 
  

  

  30 
  

  

  •872 
  

  

  •818 
  

  

  •744 
  

  

  •677 
  

  

  •573 
  

  

  •501 
  

  

  •443 
  

  

  40 
  

  

  •876 
  

  

  •813 
  

  

  •744 
  

  

  •674 
  

  

  •566 
  

  

  •495 
  

  

  •444 
  

  

  50 
  

  

  •882 
  

  

  •816 
  

  

  •738 
  

  

  •672 
  

  

  •566 
  

  

  •495 
  

  

  •442 
  

  

  60 
  

  

  •879 
  

  

  •814 
  

  

  •729 
  

  

  •669 
  

  

  •573 
  

  

  •496 
  

  

  •437 
  

  

  70 
  

  

  •890 
  

  

  •820 
  

  

  •731 
  

  

  •675 
  

  

  •585 
  

  

  •505 
  

  

  •435 
  

  

  80 
  

  

  •889 
  

  

  •819 
  

  

  •725 
  

  

  •671 
  

  

  •586 
  

  

  •505 
  

  

  •429 
  

  

  90 
  

  

  •899 
  

  

  •8-26 
  

  

  •737 
  

  

  •673 
  

  

  •585 
  

  

  •500 
  

  

  •428 
  

  

  100 
  

  

  •893 
  

  

  •824 
  

  

  •723 
  

  

  •650 
  

  

  •560 
  

  

  •482 
  

  

  •414 
  

  

  LYII. 
  On 
  the 
  Physical 
  Peculiarities 
  of 
  Solutions 
  of 
  Gases 
  in 
  

   / 
  Liquids. 
  No. 
  2. 
  By 
  J. 
  Alfred 
  Wanklyn, 
  Corresponding 
  

   Member 
  of 
  the 
  Royal 
  Bavarian 
  Academy 
  of 
  Sciences 
  *. 
  

  

  rjnHE 
  solubility 
  of 
  ammonia 
  in 
  water 
  at 
  ordinary 
  pressures 
  

   JL 
  and 
  temperatures 
  is 
  seven 
  hundred 
  times 
  as 
  great 
  as 
  

   the 
  solubility 
  of 
  carbonic 
  acid. 
  There 
  is, 
  therefore, 
  great 
  

   interest 
  in 
  ascertaining 
  whether 
  a 
  corresponding 
  retardation 
  

   of 
  the 
  act 
  of 
  solution 
  of 
  the 
  ammonia 
  is 
  possible. 
  The 
  

   following 
  experiments 
  answer 
  this 
  question 
  in 
  the 
  affirmative. 
  

   The 
  same 
  tube 
  as 
  was 
  employed 
  in 
  the 
  experiments 
  upon 
  

   * 
  Communicated 
  by 
  the 
  Author. 
  

  

  