This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: 7.2. ADIABATIC, ISOCHORIC KINETICS 271 18.104.22.168 Dimensionless form Let us try writing dimensionless variables so that our system can be written in a compact dimensionless form. First lets take dimensionless time to be = at. (7.312) Let us take dimensionless species concentration to be z with z = A hatwide A . (7.313) Let us take dimensionless temperature to be with = T T o . (7.314) Let us take dimensionless heat release to be q with q = h o T o ,A h o T o ,B c v T o . (7.315) Let us take dimensionless activation energy to be with = E RT o . (7.316) And let us take the dimensionless entropy change to be with = ( s o T o ,A s o T o ,B ) c v . (7.317) So our equations become dz d = exp parenleftbigg parenrightbiggparenleftbigg z 1 K c (1 z ) parenrightbigg , (7.318) = 1 + (1 z ) q, (7.319) K c = exp parenleftbigg 1 k 1 1 ( q ) parenrightbigg . (7.320) It is more common to consider the products. Let us define for general problemsIt is more common to consider the products....
View Full Document
- Fall '11