bmb428_problemset22

bmb428_problemset22 - BMB428 Physical Chemistry with...

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BMB428 Dr. Song Tan Physical Chemistry with Biological Applications Fall 2007 1 Problem Set 22: Reaction Mechanisms Due Nov 27, 2007 1. What is the difference between a chemical mechanism (reaction mechanism) and a kinetic mechanism? What is an elementary step? 2. Is it possible to have more than one chemical mechanism which is consistent with an observed kinetic mechanism? If you are told that a reaction goes via a particular chemical mechanism, can you derive more than one kinetic mechanism which is consistent with this mechanism? 3. If it is possible to have more than one chemical mechanism which is consistent with an observed kinetic mechanism, draw a free energy profile (with G on the y coordinate and reaction progress on the x coordinate) illustrating why this is possible. 4. The kinetics of the reaction I - + OCl - <—> OI - + Cl - have been studied in a basic solution. The initial rate of I - disappearance ( d[I - ]/dt ) has been measured for several different starting concentrations of substrates: Initial Conc of I - (M)
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This note was uploaded on 07/23/2008 for the course BMB 428 taught by Professor Tan during the Fall '07 term at Penn State.

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