CHEN 3006 Lecture Notes - Lecture 17: Initial Condition, Packed Bed, Boundary Value Problem
10 Mar 2015
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Estimate k/k0 for 1. 2 atm partial pressure h2s being quickly absorbed by large quantities of 0. 1 m monoethanolamine label the compounds 1, 2, 3, and 4, respectively eqbm constant = 275. Assume 298 k getting concentration of the gas (use ideal gas law) H for h2s in h2o is 545 we"ll use this even though the solvent is different (neutral + ionized forms add to 0. 1 m) Remember henderson-hasselbalch pka for monoethanolamine = 9. 5 the common buffer for sulfur absorption is 8. 3 (although it should work for any ph) For pka = 9. 5, ph = 8. 3 we were only given partial pressure and henry"s law constant we could guess different ph and still get the right answer. C2 >> c1,l for any reasonable ph --> safe to assume 1st order rxn. Assume d1 = d2 = d3 = d4 = d (we don"t know any better)
