13 Chemical NonEquilibrium

Seitzman all rights reserved n kn o 2 o no dn dt n kn

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Unformatted text preview: erry M. Seitzman. All rights reserved. N kN O 2 O NO dN dt N kN 2 O AE6050 2 School of Aerospace Engineering Forward and Backward (Rev.) Rates • In general, an elementary reaction can proceed in either direction n kb n Mi i iMi General Reaction kf i 1 i1 Rate Equation d Mi dt kf Mi i i kb i N NO d NO dt kf N 2 i kf kb Mi i i i i NO N O kb NO N AE6050 Chemical Nonequilibrium -5 Copyright © 2010 by Jerry M. Seitzman. All rights reserved. School of Aerospace Engineering Relationship: kf and kb • Consider result at thermodynamic equilibrium for single reaction (apply Principle of Detailed Balance) d NO 0 This assumes we may not b e in chemical equilibrium a nd everything else is in e quilibrium kb *2 O * * kf NO N kb N Kc T Chemical Nonequilibrium -6 Copyright © 2010 by Jerry M. Seitzman. All rights reserved. *2 kf N kf N not function of comp...
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