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Irreversible Uncatalyzed Reactions
2nd Order (2 Reactants-2 Product)
Description | Equations | Implementation | Examples | Discussion
Description
The model presented here simulates the kinetics of an uncatalyzed, irreversible 2nd order chemical reaction where two product molecules are formed . In this reaction, all of the substrate initially present in the lowest quantity is converted to product since no back-reaction is allowed. A bug in the current version of the JSIM Mathematical Modeling Language necessitates using model code with both forward (kf) and backward (kb) reaction rates. Once this simulation is programmed, the model of interest can be obtained by setting kb equal to zero. By solving the ordinary differential equations describing the process, the time course of the reaction can be seen directly. This model system also illustrates the concept of a "limiting reactant".
Assumptions
The following things are assumed by this model:
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The reaction is occurring in a well-mixed system. |
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The temperature of the system is constant. |
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The volume of the system is constant, which allows the use of concentrations in the rate laws. |
Reaction
Rate Laws
Model Variable Table
Model Parameter Table
4-2-1-6-1.
Contact John Bassett for comments or questions.
Copyright © 2002 NSR, University of Washington. All rights reserved
Revised 05/21/02