[Towhee-users] IAST assumptions
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From: Niels H. <n.h...@tu...> - 2008-02-20 17:19:55
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Dear towhee users, a little bit off topic but still: What are the underlying assumptions (on a molecular level) of the Ideal Adsorption Solution (IAS) theory introduced by Myers and Prausnitz in 1965? While there is usually no disagreement on the following assumptions, - equal accessibility of all adsorption sites to all adsorbates - reversibility of adsorption - perfect mixing I found two different statements about adsorbate-adsorbate interactions: (1) They are assumed to be equal for all adsorbates (A<->A = A<->B = B<->B) (2) They are assumed to be equal to zero. What is the correct assumption? Do you know of any references? Best regards, Niels |