0 l J 
ioe 18° 20°C jo? 18° 20° 25°C 
se 
o ° 
m m 
50 50 
gaduees 
ire NS 419° _/j2te i fi 
Te° 
Surface Isotherms 9 April 
Figure 3. 
a) f 
Ore, f 
Sime (L, 
a 102 15° 202 25° 30°C 
8 
50 
100 
150 
200 
250 
300 
M N 
SoeelOSsISSeeOlC Som OSMm Som 2OSC) 
a 8 
50 50 
100 
36° 
74° 73° 
75° 
Figure 
)Q 
76° 
4. Surface Isotherms 30 April 
