Figure 5.25 (page 128):

Adsorbed oxygen concentration versus gas-phase oxygen concentration.

Data files

prob18.dat

 0.00305 1.00e-06 
  0.0061 1.62e-06 
 0.00915 2.30e-06 
  0.0122 2.88e-06 
  0.0152 2.89e-06 
   0.061 4.52e-06 
  0.0762 4.60e-06 
  0.0915 4.96e-06 
   0.107 5.22e-06 
   0.122 5.35e-06 
   0.137 5.31e-06 
   0.152 5.59e-06