8.4.3 expressions of adsorption The amount of adsorption(a)of a certain kind of solid a=at, p) for certain gases is a function of Tand p (1) For constant pressure: isobar a-T(2)For constant adsorption: isochore T-p 53.3 s150 13.3 6413.3 5.3 2 300 400 15020025030350TK
The amount of adsorption (a) of a certain kind of solid for certain gases is a function of T and p. a a T p = ( , ) (1) For constant pressure: isobar a ~ T (2) For constant adsorption : isochore T p ~ 150 200 250 300 350 T/K 150 100 50 a/mlg -1 5.3 13.3 53.3 p 200 300 400 T/K 20 p/kPa 13.3 53.3 a 40 60 80 8.4.3 expressions of adsorption
8.4.3 expressions of adsorption (2) For constant adsorption isochore ◆80 mmog 日50 mmol/g 77K o40 o 30 mmol/g 93K s. 15 印 FV-TBrT113 10 4 (分e··173 5◇25mmog v 2.0 mmol △1.5 mola 日10 mmol g o 0.5 mmog 6 000200040006 008001000120014 aIn p H 1/7,7inK aT RT2 Clausius-Clappeyron equation
ads m 2 ln a p H T RT = − 8.4.3 expressions of adsorption (2) For constant adsorption : isochore Clausius-Clappeyron equation