Dinitrogen Tetroxide Dissociation Equilibrium

This Demonstration shows a plot of the Gibbs free energy for the equilibrium between nitrogen dioxide and dinitrogen tetroxide () as a function of , the extent of reaction. The reaction proceeds until the Gibbs function reaches a minimum, at the value . The equilibrium constant of the reaction can be computed from the value of using the equation , where , the total moles present at equilibrium, is equal to . Similarly, because at equilibrium , we find that .

SNAPSHOTS

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DETAILS

Reactants assumed to be at 298.15 K and 1 bar, with zero initial moles of .
Adapted from section 24-4 of [1].
Reference
[1] D. A. McQuarrie and J. D. Simon, Physical Chemistry: A Molecular Approach, Sausalito, CA: University Science, 1997.
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