New PDF release: Adsorption from Solution

By R Ottewill (Eds.)

ISBN-10: 0125309805

ISBN-13: 9780125309806

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H°. a l + Z r h + Z r h i i a a a b b which together with equn 5 gives H (r? + r ) = H° - i s b . 1 1 1 1 h b - z r h a a a (14) hence equn 7 becomes d ( /x) = - - | T T a d - 7 < i i> s r +r D y dp - z r . d i a f + i " I 2 r ^ A ( 1 5 ) a i Let superscript o denote the properties of a system with the same as that of interest but in which all and m^ are zero. For this system we have by analogy with equn 15 H° d ( \VT)/= ~ ^ z 1 m V° d T + ^T ? -U ' /V - V ° \ £ (r? dm. - ~ T . l l T l - ^ p - * Z X dm a a r ?

N. ( 1 9 8 2 ) . Adv. , 1J5, 3 1 ; Klein, J. ( 1 9 8 2 ) . Adv. , 1 6 , 101. E. H. P. V. G. H. E. T. Podoll C. F. Billett R. E. W. J. Greenleaf P. G. J. J. Szanto J. P. Fletcher C. Foster THERMODYNAMICS OF ADSORPTION FROM MIXED SOLVENTS Denver G. Hall Unilever Research Port Sunlight Laboratory Quarry Road East, Behington, Wirral, Merseyside L63 3JW ABSTRACT A general thermodynamic treatment of adsorption from mixed solvents is provided. It is designed to apply in situations where adsorbed species may be regarded as distinct from their bulk counterparts.

When these conditions hold we find that a a 1 - D6 = k dlnrn^ + k dlnm 2 + 2k dlny (36a,b) T k dlnm + k dlnm + 2k dlny a 2 a n where y = y = y^ and where counterions, species 2, are taken as species c in equn 26. and a be defined by Let a -2(17 + r ) k a at constant T and p equn 17 gives on dividing by by appropriate use of equns 35 and 36 0 = • ( h * b - k h k followed } dT k din: "k (1-a) + (2-a) from which we deduce that 8 lny k dlnm 81nm, 2/T,p_ n (38) 47 THERMODYNAMICS OF ADSORPTION 2 -kT /31mn I 3 lnm k kT 3T 2 J* P i (39) 3T where 3 In] 31n / 31ny \dlnm 2/T,p.

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Adsorption from Solution by R Ottewill (Eds.)


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